The world’s first gamma counter designed specifically for the Nuclear Medicine Department. Counts up to 10 wipes simultaneously, with AutoSpect™ DPM from a single calibration source. Cuts a 40-minute weekly wipe survey down to 4 minutes — and pays for itself in the patient procedures it frees up time to run.
The same chassis platform we’ve been refining since 1985 — engineered, assembled, and serviced under one roof.
A moderate-sized nuclear medicine department runs about 40 wipes a week. On a single-well counter that’s 40+ minutes of technologist time. On a 10-well Multi-Wiper, it’s 4. The Multi-Wiper is built on the same Genesys-platform detector design that has run in clinical labs since 1985 — now configured for wipe-test workflow, with AutoSpect™ automatic isotope DPM, automatic record-keeping, and the calibration-source budget your department actually has.
10 detectors counting in parallel turn weekly wipe surveys from a 40-minute task into a 4-minute task. An average department recovers $120,000 in patient-procedure revenue over five years — documented in our customer brochure with conservative thyroid-uptake math.
Other counters need a separate calibrated source for every isotope you use. The Multi-Wiper takes a single Cs-137 source and gives you accurate DPM on any gamma-emitting isotope up to 1 MeV. The math is in the firmware. The savings are in your reagent budget.
What used to be 80 manual steps is now 8. Reports come out clean, dated, isotope-tagged, and inspector-ready. No transcription errors, no missed entries, no log-book gaps. The records the NRC actually wants to see — without the technologist hours that used to produce them.
The Multi-Wiper ships in 2-, 3-, 4-, 5-, 6-, 8-, and 10-well configurations. Same chassis, same firmware, same detector design — pick the throughput that matches your weekly wipe survey load.
High-energy work? The Multi-Wiper HE is a specialty configuration with 2″×2″ NaI(Tl) crystals tuned for trace-sensitive 300–800 keV counting (Cr-51, low-activity PET/theranostics) — see Configurations for details.
Every feature on the Multi-Wiper exists because a customer told us they needed it — and most of them tell you something about the people who designed it.
Each well is its own NaI(Tl) crystal + photomultiplier with a drilled well and a removable plastic liner. A contaminated wipe in one well never poisons the rest of the run. Liner replacements take seconds; full assemblies are field-serviceable in an afternoon.
Enter any gamma-emitting isotope up to 1 MeV; the Multi-Wiper returns accurate DPM without per-isotope calibrated standards. Calibrate the instrument once with Cs-137 and you’re covered for I-131, Tc-99m, F-18, In-111, Ga-67, Tl-201 and the rest of your isotope deck.
0.85 inches of total radial lead shielding wraps each detector — a 0.65″ outer cast-lead sheet plus a 0.2″ lead “pig” wrapping each individual detector module. The two-element construction puts 0.4″ of lead between adjacent wells (from the touching pig walls) for physical crosstalk suppression. On top of that, our proprietary E-Lead correction eliminates well-to-well crosstalk even at 511 keV (F-18), so a hot wipe in one well doesn’t inflate the count in its neighbor.
Every well feeds a 4096-channel multi-channel analyzer with high-resolution 12-bit ADC, automatic dead-time correction, and pole-zero baseline restoration. Integral linearity better than 0.5%, count-rate capability up to 300,000 cps. Spectral accuracy that competing well counters don’t come close to.
Pre-specify the isotope per wipe location, set the trigger level, and the Multi-Wiper flags any wipe over threshold automatically — with the location name printed on the report so you know which spot in the survey route was hot. If you also need forensic identification of an unknown isotope from the spectrum, see the Wiper Gold — that capability lives on the single-detector counter with the built-in MCA.
Set per-isotope DPM trigger levels. Wipes that exceed trigger get flagged on the printout and on screen. The technologist sees the problem at the moment of the count — not in a binder review later.
CPU, memory, I/O, multichannel analyzer, and high voltage all on a single PCB built around modern surface-mount CPLD. Fewer connectors, fewer failure modes, less heat — and one board to swap if a unit ever needs depot service.
Every Multi-Wiper ships with a full-page printer (laser or industrial impact, your choice). Plug it in — no driver install, no IT ticket, no Windows. Each wipe survey gets a clean, dated, signed-off record on physical paper for the binder. Or pair with LTI Capture™ — every report captured directly to a properly named PDF, filed into a searchable archive, and optionally exported as CSV to your LIS/LIMS. A single USB-to-Serial cable replaces the printer; the instrument doesn’t change. Some labs run both: paper for the binder, PDF for the network share.
100–240 VAC universal automatic power supply. Less than 30 watts. Generator-friendly, UPS-friendly, ride-out-the-summer-brownout friendly. Same instrument ships to a hospital in Cleveland or Cape Town.
The Multi-Wiper’s detector array is the same Genesys-platform NaI(Tl) design that has run in clinical labs since 1985, configured for wipe-test workflow. Every spec on this page depends on what happens in the crystal.
Radiation is emitted in all directions, and a wipe in a well emits down through the crystal as much as out the sides. By increasing crystal mass and thickness below the well by up to 400%, our design captures more counts — especially at higher energies and especially on coated tubes and weak samples. 40% more crystal mass than typical wipe-test counters, which translates directly into measured efficiency, lower MDAs, and better repeatability on the wipes that matter most.
Each detector module in the Multi-Wiper array is individually wrapped in a 0.2″ lead “pig,” and the entire array sits inside an outer 0.65″ cast-lead sheet. Combined, that’s 0.85 inches of radial lead between the external environment and each detector — thicker than most multi-well wipe counters in service. The same construction also delivers 0.4″ of lead between adjacent wells (via the touching pig walls), suppressing well-to-well crosstalk at the physical level — before E-Lead software correction even applies. Thicker lead lowers background; lower background lowers your MDA. A wipe-test counter is only as good as its background.
Lead shielding alone doesn’t solve well-to-well crosstalk at high energies — the gamma simply punches through. Our proprietary E-Lead correction applies an electronic correction across wells, eliminating well-to-well crosstalk even at 511 keV (F-18). You get the throughput of a 10-well counter without losing the data integrity of a single-well system.
Each well is its own NaI(Tl) + PMT assembly. A field-replaceable plastic liner protects every well from contamination — replace the liner in seconds. Replacing a whole detector assembly is a one-day field-service event — not a return-to-factory round trip.
Most departments should spec the Standard Multi-Wiper. It covers everything from I-125 (35 keV) through Tc-99m, I-131, and 511-keV PET annihilation across 2–10 wells, and it does it at a fraction of the price. The Multi-Wiper HE is a specialty configuration for the narrower case where you need noticeably higher efficiency in the 300–800 keV mid-range — usually because your survey samples sit near or below the detection limit on a standard detector. Same chassis, same software, same AutoSpect™ workflow. Different detector array.
The HE replaces the standard Multi-Wiper detector array with full 2″×2″ NaI(Tl) crystal + PMT assemblies. Available as a 1-, 2-, or 3-detector system. The bigger crystals see more high-energy gammas before they punch through — that’s the entire reason the configuration exists.
The 2″×2″ crystals deliver noticeably higher efficiency in the 300–800 keV band than the standard configuration. That matters when you’re counting trace-level activity in this range — samples where you can’t afford to miss photons. Examples: low-activity Cr-51 (~320 keV) work, low-activity I-131 (364 keV) trace surveys, or any specialized counting where mid-range efficiency is the difference between detection and miss.
The HE detector also extends usable energy range from the standard 1 MeV up to 2 MeV, which brings Co-60 (1.17 / 1.33 MeV) and high-energy theranostic emitters into window. That’s a real capability, but it’s secondary — the standard Multi-Wiper handles 511 keV PET fine, and most departments never need to count anything above 1 MeV. The energy ceiling matters for a small number of niche workloads.
Larger crystals absorb their own low-energy gammas before the photomultiplier ever sees them. Below ~300 keV the HE has lower efficiency than the standard Multi-Wiper — a real trade-off, not a marketing hedge. If your survey load is dominated by I-125 (35 keV), Tc-99m (140 keV), and other lower-energy isotopes, the standard Multi-Wiper is the right choice. The HE is built for the department that’s moved up the energy curve.
The Multi-Wiper’s on-board library is organized around the way nuclear-medicine wipe surveys actually run — not the way an old RIA gamma counter happened to be wired. Programmable test types, isotope presets, location lists, and structured reports turn the weekly survey into a button press.
Wipe surveys are the work the Multi-Wiper was built to do.
A moderately busy nuclear medicine department runs 40 wipes a week. On a single-well counter that’s 40+ minutes of technologist time, plus transcription, plus a binder. On a 10-well Multi-Wiper, it’s 4 minutes — samples loaded in parallel, counted simultaneously, identified by isotope, flagged at the trigger you set, printed in regulatory-grade format ready for an inspector. The features below are the operational depth that makes that 4-minute number real, not marketing.
Run the math for your lab
The Multi-Wiper pays for itself in patient procedures.
36 minutes of weekly technologist time is one extra thyroid uptake every week, or roughly $120,000 of recovered patient-procedure revenue over five years. Plug in your department’s actual numbers and see what the savings look like for you.
See the Savings for your labThe Multi-Wiper organizes surveys hierarchically: 16 named wipe SETS (your survey routes — "DAILY," "WEEKLY," "PATIENT BATHROOM," "PET SUITE"), each holding up to 20 named wipe locations. So a single set called "PATIENT BATHROOM" might contain sink, toilet, floor, wall, faucet, drain, and doorknob — seven of its twenty available location slots. Across all sets, that’s up to 320 unique wipe locations stored on the instrument and labeled on every printout. No more decoding handwritten labels three weeks later.
Set the isotope you’re looking for and the trigger level per wipe location. Wipes that exceed trigger get flagged automatically on screen and on the printout — the technologist sees the problem at the moment of the count, not in a binder review. The Multi-Wiper requires a pre-specified isotope per wipe location; if you need forensic identification of an unknown isotope from the spectrum itself, that’s a Wiper Gold capability.
The isotope library holds up to 30 isotopes, with 16 pre-programmed at the factory: Tc-99m, I-131, Co-57, Co-58, Cs-137, I-125, I-123, F-18, Ba-133, Ga-67, Cr-51, In-111, Tl-201, Xe-133, Sm-153, Na-22 — covering the day-to-day clinical and research deck. Add up to 14 more of your own.
The headline feature: enter any gamma-emitting isotope up to 1 MeV and the Multi-Wiper applies AutoSpect compensation to deliver accurate DPM — without per-isotope calibrated standards. Calibrate once with Cs-137; cover every isotope your department uses. One source. Every isotope. Every wipe.
Lead shielding alone doesn’t fully solve well-to-well crosstalk at high energies — the gamma simply punches through. Our proprietary E-Lead correction applies an electronic correction across wells, eliminating well-to-well crosstalk even at 511 keV (F-18). A hot wipe in well 1 doesn’t inflate the count in well 2. You get the throughput of a 10-well counter without losing the data integrity of a single-well system.
The third layer of well-to-well accuracy, on top of physical detector gain matching (in the factory) and E-Lead crosstalk correction. The Multi-Wiper’s normalization workflow runs a per-well measurement with a user-supplied source and computes correction factors that mathematically equalize each well’s response. Any consistent source works — calibrated standards are ideal, but an uncalibrated source is sufficient when all you need is well-to-well matching. The procedure compensates for the residual variation that physical matching can’t eliminate, and absorbs the effects of field detector replacement without sending the unit back to LTI. Applied to the Multi-Wiper test library (the assay-style counting where same-sample-different-well must produce identical results). Not applied to standard wipe testing — wipes are independent measurements where the trigger-level comparison matters more than absolute well-to-well matching.
Every wipe gets a printed record with date, time, location, isotope, CPM, DPM, MDA, trigger status, and pass/fail. Inspectors get a clean, complete, signature-ready binder. Your department gets no transcription errors, no log-book gaps, no findings on documentation.
The Multi-Wiper’s wipe-test workflow is built around what comes out of the kit, not the other way around. The LTI Wipe Test Kit ships with 200 viscose wipes, 200 capped tubes, a marker, and a foldable 25-position cardboard rack — each sample is sealed at the point of wipe, labeled on the tube body, and dropped directly into the Multi-Wiper well without any further handling. Contamination control by physical isolation, not by operator discipline.
The Multi-Wiper also runs straightforward CPM counting for stat samples — useful for the occasional in-vitro spot check, sample-tube counting, or low-volume research panel. The primary use case this instrument is designed around is wipe surveys, and the wipe-test features above are where the engineering work shows. The CPM mode is here when you need it.
All specifications below apply to the Multi-Wiper. Configuration-specific data may vary; contact us for the exact figures for your intended setup.
| Spec | Multi-Wiper | Multi-Wiper HE |
|---|---|---|
| Detector array | ||
| Detector crystal | NaI(Tl) sized for routine clinical isotopes (Tc-99m, I-131, F-18, Ga-67, In-111, Tl-201) | 2″ × 2″ NaI(Tl) — bigger crystal mass for trace-sensitive mid-energy work |
| Optimized for | Standard clinical-isotope wipe surveys; full performance at 511 keV (F-18) | Cr-51 (320 keV), trace-level I-131 / Co-60, and other low-activity / high-energy work in the 300–800 keV band |
| Energy range | Up to 1 MeV | Up to 2 MeV |
| Detector / well count | 2, 3, 4, 5, 6, 8, or 10 wells (drilled NaI(Tl) + PMT per well) | 1, 2, or 3 detectors (the 2″×2″ crystals are physically larger, so the array is fewer-but-bigger) |
| Below 300 keV efficiency | Full efficiency on lower-energy isotopes (I-125, Tc-99m) | Lower than standard — crystal self-absorption is a real trade-off below ~300 keV |
| Well dimensions | 1.25″ deep × 0.669″ diameter (3.175 cm × 1.7 cm) — identical | |
| Well liner | Removable, replaceable plastic — identical | |
| Photomultiplier tube | Hamamatsu Photonics — every detector, every configuration. Identical PMT. | |
| Crystal-mass design principle | Extra mass below the well (up to 400% deeper than a typical wipe-test counter) — identical design principle, scaled to crystal size | |
| Shielding | ||
| Lead thickness | 0.85″ (2.16 cm) total radial — 0.65″ outer cast-lead sheet plus 0.2″ per-detector lead “pigs”; 0.4″ lead between adjacent wells — identical | |
| E-Lead™ crosstalk correction | Proprietary electronic correction across wells / detectors, effective up to 511 keV — identical | |
| Count rate & resolution | ||
| Count rate capability | Up to 300,000 CPS — identical | |
| Dead-time correction | Automatic — identical | |
| Multi-channel analyzer | 4096-channel MCA, 12-bit ADC, pole-zero baseline restoration — identical | |
| Integral linearity | Better than 0.5% — identical | |
| Electronics & firmware | ||
| Architecture | Embedded CPU; CPU, memory, I/O, MCA, and HV all on a single PCB (surface-mount CPLD) — identical | |
| Calibration | Single Cs-137 source covers all gamma-emitting isotopes via AutoSpect™ — identical | |
| Moving parts | None — 100% solid state — identical | |
| Connectivity, power, physical | ||
| Printer | Full-page laser or industrial impact (included) — identical | |
| Output | Configurable serial port for host / LIS connectivity — identical | |
| Power | 100–240 VAC universal, 50 / 60 Hz, < 30 W — identical | |
| Dimensions | 20″ W × 13.5″ D × 10.5″ H (51 × 34 × 27 cm) — identical chassis | |
| Weight | < 100 lb (45 kg), depending on configuration — identical chassis | |
| Build & lead time | ||
| Configuration model | Built from a fixed set of well counts (2/3/4/5/6/8/10) | Custom-configured per order (1/2/3 detectors, crystal pairing, calibration tuned to isotope mix) |
| Lead time | Standard manufacturing lead time | Longer than standard — contact LTI early in procurement |
| SKUs | ||
| Multi-Wiper Standard | LTIW1002US, LTIW1003US, LTIW1004US, LTIW1005US, LTIW1006US, LTIW1008US, LTIW1010US (2/3/4/5/6/8/10-well respectively) | |
| Multi-Wiper HE | Custom configuration — contact LTI for SKU and quote | |
| Manufacturing | ||
| Engineered & built in | Elburn, Illinois, USA — identical | |
| Service model | Field-replaceable parts shipped to your biomed, or send-in repair to LTI Elburn — identical | |
| Warranty | Standard manufacturer’s warranty — contact us for current terms | |
Pick the throughput that matches your wipe-survey load. Because the 2″×2″ crystals are physically larger than standard Multi-Wiper detectors, the HE is offered as a 1-, 2-, or 3-detector system.
Spec sheets list the well count. They don’t show you what’s underneath. Here’s what we built — and why your results don’t depend on which well happened to hold the sample.
A sample counted in well 1, well 5, or well 10 returns the same number of counts.
When a calibration source is first installed in the Multi-Wiper’s ISO Library, the Measure Efficiency routine is run once across every well — either by walking the same source from well to well or by counting a matched sample set in all wells simultaneously. The firmware stores not only the absolute efficiency for that isotope, but the relationship between every well: this is what we call normalization.
The point of normalization is simple: a sample counted in well 1, well 3, or well 10 returns the same number of counts. The well you happened to drop it in doesn’t change the answer. That’s why we don’t treat a 10-well Multi-Wiper as "ten detectors sitting next to each other." The engineering work isn’t getting ten NaI(Tl) crystals and ten PMTs into one chassis — that’s manufacturing. The engineering work is matching those ten channels in PMT response, amplifier gain, MCA linearity, and shielding geometry so they read identically across the full energy range. Normalization is how we verify the match held through assembly and how the customer verifies it stays held through years of use.
Daily Check Efficiency on a Multi-Wiper verifies two things, not one:
Either condition can trigger a calibration recommendation. The operator’s job is to run the routine; the instrument handles the comparisons and the math.
Why this matters for your data. On a competitor multi-well counter where wells aren’t actually matched and normalized, a sample counted in the rightmost well can read differently from the same sample counted in the leftmost well — and you’d never know unless you happened to count the same sample twice. On a Multi-Wiper, your wipe survey’s pass/fail result doesn’t depend on which physical well the technologist happened to drop the sample into. The result is determined by the activity on the wipe, not by the geometry of the instrument.
Total counts is the constant. Count time is the variable. Statistical confidence stays the same on day one and on year ten.
When Measure Efficiency or Check Efficiency runs on a Multi-Wiper, the firmware does a brief preview count of the source’s activity, then sets the count time dynamically so every well acquires the same total number of counts. The total-counts target is the constant; count time becomes the variable.
Why this matters: radioactive counting is Poisson-distributed. Statistical variance scales with how many counts you’ve collected, not with how long the timer ran. If one Check Efficiency run captured a million counts and another captured 200,000, the second run is fundamentally noisier — and false drift signals get harder to tell apart from real ones. By making total counts the constant, the Multi-Wiper keeps statistical variance the same on day one and on year ten. When Check Efficiency does flag a drift, you trust it, because the noise floor is the same as it’s always been.
Graceful source-life management:
The corollary of constant-statistics counting is a firmware-enforced source minimum — and the Multi-Wiper handles even that gracefully. As your calibration source ages, the instrument starts warning you in advance that the source is getting low while you still have months of useful life left. It gives you time to order a replacement. Only when the source can no longer hit the count target in a reasonable time does the firmware refuse to complete the routine. Graceful degradation by design, not a cliff.
Why this matters for trend analysis. A typical multi-well counter sets count time as the constant: a 60-second count gives different statistical confidence on a fresh source vs. an aging one. So drift you measure between January and June could be real drift, or could be statistical noise from a quieter source. On a Multi-Wiper, drift is drift — the noise floor doesn’t move underneath you. That distinction matters every time a QC officer is trying to decide whether the instrument needs recalibration.
No carousel. No automated sample changer. No mechanical advancement. Nothing rotates, nothing slides, nothing wears out mechanically.
A competitor multi-well counter typically uses a sample carousel or some kind of automated transport mechanism to advance samples through the count position one at a time. That carousel is a moving part. It has motors. It has belts or gears or a chain. It has bearings. It has alignment tolerances. It needs preventive maintenance, it has service-call patterns, and when it jams — and they jam — the instrument is down until a technician comes out.
The Multi-Wiper counts every well simultaneously. Wipes go into the wells, the instrument counts them all at once, the results print. There is no carousel. There is no sample changer. There is no mechanical advancement. Nothing rotates, nothing slides, nothing wears out mechanically. The hardware in the count path is solid-state from the moment the wipe enters the well to the moment the result hits the printer.
What this means in practice:
Why this matters for total cost of ownership. The capital cost of a multi-detector counter is one decision. The five-year operating cost is another. A no-moving-parts design means your operating cost over the life of the instrument is mostly source replacements (a known cadence) and the occasional electronics service event (rare). The unknown cost — "when will the carousel jam at the worst possible moment" — doesn’t exist on this platform.
Forced background. Drift-flagged efficiency. Self-aware. Operator-proof.
A daily QC routine on a multi-well counter has two parts: a background count and a check against the stored efficiency baseline. On most instruments, both are the operator’s responsibility to remember, run, log, and act on. On the Multi-Wiper, the firmware enforces them.
Background — forced by the firmware.
The Multi-Wiper requires a fresh background count every 24 hours and after every power cycle. You can’t advance to counting samples until it’s done — the instrument prompts you. No manual log-keeping required. You can also set a high-background threshold; if the background reading exceeds that ceiling, the instrument flags it automatically and tells you to investigate.
Check Efficiency — the firmware does the math.
Drop the calibration source in a well, run Check Efficiency. The instrument measures the source and compares against the stored efficiency baseline. If drift exceeds the flagged threshold (~5%), the instrument reports it and recommends recalibration. On a multi-well unit, it also checks the spread between wells (see Demo 01) and flags either failure mode. The operator runs the check; the instrument decides whether something needs attention.
That’s the daily routine. The forced background plus the Check Efficiency run plus the implicit cross-well verification together cover the routine instrument-health check. Pass that, plus a clean background, and you’re 99.9% confirmed healthy. The remaining 0.1% is the kind of failure that announces itself loudly (a dead PMT, a broken cable, a sample physically stuck somewhere it shouldn’t be), and the instrument tells you about that too.
Why this matters for staffing. A QC routine that depends on the operator remembering and interpreting is a QC routine that quietly fails on the days when staffing is tight, when a new technologist is being trained, or when the experienced operator is on vacation. A firmware-enforced QC routine is a QC routine that runs the same way regardless of who’s standing at the bench. That’s what we mean when we say the Multi-Wiper’s QC is operator-proof.
The point of this page.
Anyone can spec a multi-well counter. The well count is on the front of the brochure. The engineering decisions that determine whether your data is trustworthy across years of use are not. Normalization, constant-statistics counting, no moving parts, and firmware-enforced QC are how we make sure the Multi-Wiper produces the same answer for the same sample regardless of which well you used, regardless of which day it was, and regardless of who was standing at the bench. Built right, built to last, built in Elburn, Illinois.
The Multi-Wiper holds an isotope library so the technologist can specify exactly what isotope each location is being tested for — Tc-99m, I-131, F-18, Cs-137, whatever the lab uses. Energy windows, half-life, and efficiency are stored per isotope.
Note: the Multi-Wiper requires a pre-specified isotope per Wipe Location. The Wiper Gold (single-well) adds AutoSpect™ unknown-isotope identification and a 4096-channel MCA — useful when a contamination event needs forensic identification rather than confirmation. See Wiper Gold →
The Multi-Wiper uses the same calibration approach as every Genesys-platform instrument: a single source (Cs-137, Na-22, or Co-57) drives an automatic gain adjustment. Below: real spectrum captures from a working Multi-Wiper during calibration.
A daily background and check-source measurement satisfies most regulatory requirements and catches detector drift before it shows up in a real wipe. The Multi-Wiper has the routine built in — load the QC sources where the screen says, press the daily test, done.
Every Multi-Wiper count produces a printable report. Date and time stamped. Per-location: isotope, background, calculated MDA, trigger, net activity, units, PASS/FAIL. This is regulatory documentation, not marketing material — the kind of artifact a state nuclear-medicine inspector wants to see in your binder.
Same UI, every Genesys-platform instrument. A technologist trained on the Multi-Wiper is also trained on the Genii, the Gamma 1, and the single-well Wiper Gold — same key layout, same menu structure, same report format. Cross-train your team once.
Most product brochures show you a rendered UI mockup. We show you real printouts — the same ESC/P 2 printer output your operators will see, the same column layout, the same MCA spectrum capture, the same pass/fail logic.
Every Multi-Wiper report carries the date and time stamp from the instrument’s internal clock, the wipe-set name, the configured count time, and per-location results. The flagship report — the WIPE TEST REPORT — surveys a named area (e.g., BENCH1, SINK1, TABLE) and prints a per-isotope breakdown for each with automatic PASS/FAIL against operator-set triggers. Below: a real two-page printout from a Multi-Wiper unit, plus the daily per-well background validation screen the firmware runs every 24 hours.
A real two-page Multi-Wiper printout for WIPE SET: AREA1, 1-minute count time, surveying three locations on one run: BENCH1, SINK1, and TABLE. Each location prints the same eight-column breakdown — ISOTOPE, BKGND, MDA, TRIGGER, NET ACTIVITY, UNITS, RESULT — across the full Multi-Wiper isotope library (FULL, Tc-99m, I-131, Co-57, Co-58, Cs-137, I-125, I-123, F-18, Ba-133, Ga-67, Cr-51, In-111, Tl-201, Xe-133, Sm-153, Na-22). Every isotope at every location gets its own PASS or FAIL against the configured trigger. The MDA (Minimum Detectable Activity) formula prints at the top of the report — MDA = (2.71/Ts) + (3.29) × √(Rb/Tb + Rb/Ts) — so the auditor knows the exact decision rule the instrument applied. Page 2 closes the report with technologist signature, comments, supervisor signature, and date lines.
The instrument-health check the firmware runs every 24 hours, across every well of the configuration. The PASSED indicator at the top of the screen confirms all wells are below their configured triggers; below it, each well’s background count is shown numerically (well 1 obscured behind the PASSED indicator by design). Wells that drift above threshold flag the screen as FAILED with the offending well number identified. This is the daily QC document an inspector wants to see; it prints to the report log on demand.
The point of showing you these: the Multi-Wiper produces documentation rich enough for ALARA records, accreditation audits, regulatory inspections, and your own QA program — out of the box, in the format your operators will print every day. Per-isotope PASS/FAIL, per-location surveys, signature block, and automatic per-well background validation. No interpretation required from the operator.
Need a sample report tailored to your tender or procurement evaluation? Contact us — we’ll send fresh printouts directly →
Enter your weekly wipe-test load and a few cost assumptions. We’ll show you the labor time you’ll get back, how quickly the instrument pays for itself, and the additional revenue your freed-up technician time can generate every year after that.
Every field is pre-filled with U.S. national averages. Adjust to match your facility.
Recalculates as you type. All figures in U.S. dollars.
We’ll build a quote around the configuration you’ve modeled above — the model, your throughput, and any options that match your workflow. No sales pressure.
Someone from LTI will be in touch within one business day with a formal quote built around your configuration.
Every line below uses the inputs you entered above. Change any input and these numbers update.
These are estimates based on average pricing. Final numbers depend on quoted price. Methodology: a single‑well counter is assumed to take 60 seconds per wipe. The Multi‑Wiper completes the same batch in 60 seconds because every well counts in parallel. Annual figures use 52 weeks ÷ 12 months. The "percent of saved time used for billable procedures" slider controls how much of the freed time converts to additional revenue, with one procedure billed per converted hour. Adjust the inputs above to match your facility.
Looking for the Multi-Wiper brochure, training manual, or calibration source guidance? All Multi-Wiper documentation →
Tell us about your workflow, throughput, isotope range, and how you currently log results. We’ll come back with a configuration and a quote — not a sales pitch.