Modular Radiation Survey Meter
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Modular Radiation Survey Meter
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The RDS-31 meter is a versatile radiation detector and survey meter with a range of external probes that provide extended functionality. Explore applications and features here.

Get More Info Data Sheet


  • H*(10) ambient dose equivalent dose and dose rate
  • Range of external smart alpha, beta and gamma probes for direct connection with a RDS-31 meter
  • Large graphic screen, configurable backlight with automatic illumination control
  • Audible buzzer and tactile vibration alarms
  • High impact durable case construction, IP-67 immersion proof
  • Internal memory to store measurements
  • Optional WRM2™ radio for wireless remote monitoring


The RDS-31 device is a compact GM tubed-based handheld gamma radiation detector. The RDS-31 meter is complemented by a full line of external probes to detect alpha and beta radiation. Its versatile functions and durability make it suited for a wide range of applications.


Solutions for Challenging D&D Projects
Software Downloads

Revision Number: 3.05.5

Revision Date: June 2020

Comments: CSW-31 software and PC cable link is needed to complete the upgrade.

Revision Changes/Additions: 

CSP Support Second Round

Added support for following CSP probes: SA-100, SA-32, SA-20-2, SAB-250, SAB-32, SB-32, SB-20, SB-100/B, SB-100/A, EASY-COUNT, SPAB-15, SN-D, SN-D-2, STTC, SVLD, TELE-STTC, SABG-15+, STTC-W

Following work with lithium batteries: SABS-579, SABP-525

Updated scaler functionality to support contamination CSP probes.


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Atlanta, GA 30318

Sales Phone: 800-243-3955
Support Phone: 800-255-6370

Support and Sales for Detection and Measurement and Radiation Monitoring Systems products in the Americas.

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Sales Phone: +33 4 90 59 59 59
Support Phone: +33 4 90 59 60 60

Sales and Service for Detection & Measurement and Radiation Monitoring Systems in Asia, Europe, the Middle East, Africa and Pacific