Spectrum Techniques’ Wipe System: Precision contamination detection for safety and environmental protection. Customizable and reliable.

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The Wipe System – a state-of-the-art solution for the precise and efficient collection of radioactive contamination.

Effortless Contamination Detection: Our Wipe System is designed to simplify and enhance the process of identifying and quantifying radioactive contamination. With meticulous attention to detail, it enables you to maintain the highest standards of safety and environmental protection.

Comprehensive Solution: This system comprises user-friendly software and specialized wiping materials, ensuring a comprehensive approach to contamination monitoring. It empowers users across various industries, including nuclear facilities, healthcare, and environmental laboratories.

Accurate and Reliable: Spectrum Techniques' Wipe System is built on cutting-edge technology, offering unparalleled accuracy and reliability. It allows you to confidently detect and measure radioactive contaminants, safeguarding your personnel and the environment.

Customizable for Your Needs: We understand that different applications have unique requirements. Our Wipe System is customizable to meet your specific needs, offering flexibility in terms of sample size, detection thresholds, and reporting options.

Exceptional Support: As with all Spectrum Techniques products, our Wipe System is backed by a team of experts dedicated to ensuring your success. Our technical support and training resources are available to assist you every step of the way.

Upgrade your contamination monitoring process with Spectrum Techniques' Wipe System. Stay compliant, protect your environment, and mitigate risks with precision and confidence.

System Components


The SP78W, scintillation well detector includes our SD78W, NaI(Tl) scintillation well detector, TS78-1 verticle stand.


Cs-137 test tube source constructed using a capped 12 mm x 75 mm polypropylene tube. The Cs-137 material is deposited in the bottom of the tube and sealed using epoxy.
ST365 Specifications

Available in two different models

The ST365 Model A uses the original 6-decade LED screen, while ST365 Model B uses a 16 character, backlit LCD screen.

Capable of being operated via USB, Ethernet, and Wifi

While the ST365 can be used as a standalone unit, the user can also operate the ST365 via computer or Android app via USB, Ethernet, or WiFi connection.


When using with a computer or app, the ST365 is controlled using Spectrum Techniques’ new STU software.
Power 9 volt DC at 1200 mA*
High Voltage 0 to +1200 volts @ 0.2 mA, selectable in 10 volt increments
Inputs/Connectors – BNC Connector – accepts standard GM detectors
– MHV Connector – accepts scintillation detectors
Interface – USB 2.0
– LAN (for both PC and Mac)
– WiFi Direct for Android Device
Model A Display 6-decade LED – 1 inch numerals
Model B Display 16 character LCD – Backlight alpha numeric
Modes – Counts
– Count Rate (Counts Per Second)
– Elapsed Time
– Preset Time
– High Voltage Level
Software – Spectrum Techniques Ultra for PC
– Spectrum Techniques Ultra for Mac
– Spectrum Techniques Ultra for Android devices
Housing Plastic with metal front and rear panel
Dimensions 7.6 x 22.9 x 17.3 cm (3 x 9 x 6.8 in.) (H x W x D)
Weight 0.82 kg (1.8 lb)
  • ST365A or ST365B: ST365 Radiation Counter, Model A or Model B
  • USB: USB cable (6 ft.)
  • SP78W1: Complete well detector assembly, single wire connection
  • CS137TS.1: Cs-137 test tube source, 0.1 μCi (3.7 kBq) +/- 10%


  • View PDF      ST365 Radiation Counter Operations Manual
  • View PDF      ST365 LAN Administration


READ BEFORE YOU DOWNLOAD: Click Download to copy the STU Software installation file to your computer. After a short delay the file will appear at the bottom of your browser window. Use your mouse cursor to double-click on the file. This starts the installation.

  • Download     PC – STU ST365 Software
  • View PDF      PC – Quick Start – Install STU ST365 Software
  • View PDF      PC – Quick Start – Run STU ST365 Software
  • View PDF      PC – STU ST365 Software User Manual


  • Download      Mac M1 computers – STU ST365 Software
  • View PDF       Mac M1 Computers – STU ST365 Software User Manual
  • Download      Mac – STU ST365 Software
  • Download      Mac – FTDI Drivers
  • View PDF       Mac – STU ST365 Software User Manual


  • Download     Android – STU Software
  • View PDF      Android – STU User Manual


  • View PDF     ST365 Webpage Control User Manual

NOTE: Adobe Reader is necessary to view these PDF documents.  If you do not already have Adobe Reader installed on your computer, you can download the installer for free from the Adobe website.