Product Catalog

Precision Gamma Counters & Wipe Test Instruments

Reliable, high-performance instruments trusted in Nuclear Medicine, Radiopharmacies, Research, and Clinical laboratories.

Find Your Counter

Two questions get you to the right instrument.

No browsing the catalog. Tell us what your lab actually does and we’ll point you to the right counter.

What’s the main thing you’ll use this counter for?

How much volume do you run, day to day?

01 — Nuclear Medicine

Nuclear Medicine

Wipe-test counters built for hot labs, nuclear medicine departments, and radiopharmacies.

02 — Decontamination

Decontamination

S4FE-D® decon products for radioactive, hazardous-drug, and chemical cleanup.

03 — Research & Clinical

Research & Clinical

Multi-well and single-well gamma counters for RIA, IRMA, and screening assays.

01 · Nuclear Medicine

Wipe-test counters built for the rigor of daily hot-lab work.

From the high-throughput Multi-Wiper™ for busy nuclear medicine departments to the AutoSpect™-equipped Wiper™ Gold with its built-in 4096-channel MCA — engineered for nuclear medicine departments, radiopharmacies, and cyclotron operations.

Wipe-Test Family · One Platform, Two Configurations

Multi-Wiper™

The first multi-detector wipe-test counter built for the Nuclear Medicine Department. Counts up to 10 wipes at once with automatic isotope ID and DPM results. Standard Multi-Wiper covers everyday 0–1 MeV work; the optional Multi-Wiper HE configuration adds 2″×2″ NaI(Tl) crystals for trace-sensitive 300–800 keV mid-range work. Same software, same calibration, same training across both.

Wells: 2 / 3 / 4 / 5 / 6 / 8 / 10
Energy range: Up to 1 MeV (standard) · 300–800 keV optimized (HE)
Detectors: NaI(Tl) deep-well, Hamamatsu PMTs
Output: DPM + automatic isotope ID, multi-isotope, MDA

See how the Multi-Wiper can generate additional revenue for your department

View Multi-Wiper details → Compare Standard vs HE →

Single-Detector Family · Built-In 4096-Channel MCA

Wiper™ Gold

Compact single-detector wipe counter for the lab that doesn’t need ten wells. AutoSpect™ spectrum compensation produces clean DPM, with the only true 4096-channel MCA built into a wipe-test counter on the market. Two well configurations: Wiper Gold (standard well) for routine wipe surveys, and Wiper Gold LSV (large-sample-volume well) for higher-activity samples, RIA tubes, larger vials, and bulk-volume work. Same electronics, same MCA, same software across both.

Well options: Standard well · Large-Sample-Volume (LSV) well
MCA: True 4096-channel, built in
Software: AutoSpect™ with spectrum compensation
Footprint: Compact bench-top

View Wiper Gold details → Standard vs LSV well →

New · Software Companion · v1.0 May 2026

LTI Capture™

The digital reporting companion for the LTI counter line. Replaces the dot-matrix printer with software that runs on the lab’s existing PC. Every report your instrument prints — wipe tests, calibration summaries, AutoSpect™ spectra, daily QC, RIA assays — captured directly to a properly named PDF, filed automatically into a searchable archive, optionally printed to any networked office printer, and exportable as CSV to your LIS or LIMS. One USB-to-Serial cable, no firmware change, backwards-compatible with every LTI Wiper ever shipped (Multi-Wiper, Genii, Gamma 1 coming in the next release). One-time license per organization, no subscription, no phone-home.

Platforms: macOS · Windows · Linux
Outputs: Print · Organized PDF archive · CSV for LIS/LIMS
License: One-time, per-organization · 30-day eval
Compatible with: Wiper family today · Multi-Wiper, Genii, Gamma 1 next release

View LTI Capture details → Open Sell Sheet (PDF)

02 · Decontamination

S4FE-D® — broad-spectrum CBRN decontamination that binds and removes the contamination.

S4FE-D® is a single line of decontamination products engineered to safely and rapidly remove Chemical, Biological, Radiological, and Nuclear (CBRN) contaminants from surfaces, skin, and equipment — without requiring the responder to identify the substance first. S4FE-D® does not neutralize, disinfect, or kill. It binds the contaminant and lifts it away, so what was on the surface ends up in the wipe and out of your facility.

And here’s the part that catches people off guard: the chemistry itself is gentle. Essentially pH-neutral (~6.5), non-corrosive, skin-safe, and unregulated for shipping as a hazardous material. The only PPE the SDS recommends is eye protection — no gloves, no respirator, no special handling. It removes the contamination without being the contamination.

Powered by Bind-It™, the proven LTI chemistry already trusted by U.S. nuclear medicine departments and hospital pharmacies. S4FE-D® is in use across nuclear medicine departments, radiopharmacies, research and clinical laboratories, hospital emergency rooms, and EMS & ambulance crews — anywhere a responder has to clean now and identify later. Unknown drug residue on a stretcher between patient transports. Bodily fluids in an exam room. Radioactive material on a patient, an exam table, or a piece of equipment. One protocol covers all four CBRN threat categories — for routine cleanup, and for the moment it stops being routine.

S4FE-D family of CBRN decontamination products — spray, wipes, concentrate, hand & body soap, and individual decon towels

CBRN Decontamination · One Chemistry, Every Form Factor

S4FE-D® Decontamination Line

The full S4FE-D® product family in one place — powered by Bind-It™, LTI’s proven decontamination chemistry. Pre-mixed 32 oz spray and pre-wetted wipes for daily surface decon. 3 oz and 16 oz concentrate pouches for bulk-volume work. Hand & body soap and touchless wall dispensers for personal decon at every sink. Pocket-sized DIRT individual decon towels for emergency response. One chemistry, all four CBRN threat categories, pH-neutral and skin-safe — the rare line where the cleanup product isn’t the new contamination.

Forms: Spray · Wipes · Concentrate · Soap · DIRT towels
Powered by: Bind-It™ (LTI’s 30+ year decon chemistry)
pH: ~6.5 neutral · skin-safe · non-corrosive
CBRN: Chemical, Biological, Radiological, Nuclear — one protocol

View the full S4FE-D® line → See all SKUs & pricing →

Patient + Feline

Home Isolation Kits

Sent home with patients receiving I-131 therapy. Includes spray, wipes, soap, concentrate, and clear instructions for safely storing and disposing of contaminated items at home — available for human or feline-hyperthyroid use.

LTIHCPUS: Patient (human)
LTIDCPUS: Feline I-131
Use case: 90-day post-therapy
Powered by: Bind-It™

View Details →

Spill & Incident Response

Decon Response Kit (DRK)

Pre-staged spill response in a Plano Sportsman’s Trunk — absorbents, S4FE-D® spray, wipes, concentrate refills, hazmat waste bags, gloves, and shop towels. Built for hot labs, nuclear pharmacies, fire and EMS, civil defense, and industrial response. Three configurations: Base Kit, Cordless Spray add-on, and PPE add-on.

Base Kit: 4 spray + 12 refill + wipes + absorbents
Add-on A: Cordless pressure washer + concentrate
Add-on B: Tychem suit + face shield + N95
Pricing: Quote on request

View Details →

From the Field

Used daily where iodine contamination is a routine problem.

Quotes from clinical and pharmacy customers who’ve trusted this chemistry in their day-to-day decontamination routines for years.

S4FE-D is the only thing we have found which has helped clean I-131 from the floors of our patient rooms. We find our thyroid patients in isolation rooms don’t always wear their slippers as instructed. The perspiration from their feet contaminates the floor.

Nuclear Medicine Technician Hospital · British Columbia

We use S4FE-D to clean the I-125 from our assay samples after we run them. It allows us to decontaminate the test tubes, so that we don’t have to dispose of them as radioactive waste.

Chief Technologist Large Reference Laboratory

We use S4FE-D to clean up from spills in our hot lab. It is the only thing we have found that really works for I-131.

Nuclear Pharmacy Technician Pharmacy · Arkansas

Available through your local distributor or purchase online at s4fed.com.

03 · Research & Clinical

Gamma counters for RIA, IRMA & clinical research.

The Genesys™ platform — a clinical and research mainstay since the 1980s — in two configurations sized for any workflow. Full assay package with curve-fitting, transformations, statistics, and reporting.

Genesys™ Gamma Counter family — Gamma 1, Genii, and Genii HE

Gamma Counter Family · One Platform, Three Configurations

Genesys™ Gamma Counters

The Genesys platform — running in U.S. labs since 1985 — in three configurations. Gamma 1 (single-well), Genii (2–10 wells), Genii HE (high-energy to 2 MeV). Same software, same calibration, same training across the family. Unified product page includes a live throughput calculator and full Wizard² comparison.

Detectors: 1, 2, 3, 4, 5, 6, 8, or 10 NaI(Tl) wells
Energy range: 0–1 MeV (standard) / 0–2 MeV (HE)
Calibration: I-125 tracer — no purchased standards
Unique: Stored Curve + Recall Counts (since 1985, not on competitors)
Engineering: Hamamatsu PMTs · 100% solid state · USA-made

View Genesys Counters → See the 13-vs-109 math →

04 · Accessories

Counter accessories and consumables.

Trays, carriers, well liners, and the wipe-test kit itself — purpose-built for the Multi-Wiper, Wiper Gold, and Genesys counters. Available standalone or bundled with any instrument order.

Sample Collection

Wipe Test Kit

$99 MSRP

Each sample sealed in its own capped tube — not folded into a card. Pre-assembled with 200 viscose wipe squares (~2″ × 2″), 200 tubes with caps, a fine-tipped marker for direct-on-tube labeling, and a foldable 25-position cardboard rack. The full sample-prep workflow, contamination-controlled by design, in one box. For the Multi-Wiper, Wiper Gold, and Genesys counter families.

Learn more & order

Consumable · Sold in packs of 5

Detector Well Liners

$19.50 MSRP

Disposable polyethylene inserts that stay in the well full-time. Two jobs: physically protect the thin aluminum well floor (and the NaI(Tl) crystal directly beneath it) from dropped tubes, and contain any sample leak inside the liner instead of on the detector. Sold in packs of 5; we typically recommend 2 packs per instrument as initial stock.

Request Order

Tray Accessory

Sample Tube Carriers

$72 MSRP

Snap-in carriers that hold standard sample tubes inside the LTI sample trays. Replace or expand to match your assay volume and tube size.

Request Order

Sample Handling

Sample Tube Trays

From $130 MSRP

Replacement sample trays in 5-well and 10-well configurations. Current production trays are aluminum; older customers may still be running plastic trays from earlier generations — both fit the same carriers. Mix and match with carriers to fit your run-time loading workflow.

Request Order

Building a quote? We'll help you spec it.

Tell us about your facility and workflow. Our engineering team will recommend the right configuration — instrument or decon kit.

Talk to Sales → Download Resources