Radalert 200™ Radiation Survey Meter for First Responders

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First Responders appreciate the Radalert 200 slide switches – Intuitive and Easy to Operate with firefighting gloves and other PPE.

The Radalert 200 is a rugged solution for monitoring both ambient and elevated levels of ionizing radiation in challenging environments. Simplified user interface requires minimal training. Detects and measures alpha, beta, gamma, and X-radiation. Data is displayed in your choice of counts per minute (CPM), μSv/hr or mR/hr, or in accumulated counts. A red LED blinks and a beeper chirps with each count (can be muted). An audible alert sounds when the radiation reaches a user adjustable level.

  • Detect potential hazards immediately
  • Minimize personal radiation exposure
  • Monitor an area or perimeter
  • Detect radiation leaks
  • Detect concealed radioactive materials
  • Survey Transportation Incidents
  • Protect your community during radiological incidents
  • Ensure regulatory compliance
  • Support Hazmat operations

*** Please note that International Medcom can customize the label with your department logo on request.

Download Radalert 200 Specifications

Halogen-quenched Geiger-Mueller detector (LND 712)
Mica end window density is 1.5–2.0 mg/cm2
Side wall is 0.012″ #446 stainless steel
Detects Alpha, Beta, Gamma, and X-radiation

4-digit liquid crystal display with mode indicators

Operating Range:
µSv/hr: .000 to 2000
mR/hr: .000 to 200
CPM: 0 to 350,000
CPS: 0 to 3,500
Total: 0 to 9,999,000 counts

Cesium-137 (gamma)

Gamma Sensitivity:
1,200 CPM/mR/hr referenced to Cs-137

±10% typical; ±15% maximum

Alert Range:
µSv/hr: .001 to500
mR/hr: .001 to 50
CPM: 1 to 350,000
CPS: 1 to 3,500
Beeper sounds the alert

Can set sampling periods of 1 minute to 40 hours

Averaging Periods:
Display updates every 3 seconds, showing the average for the past 60-second time period at normal levels. The averaging period decreases as the radiation level increases.

Count Light:
Red LED flashes with each count

Beeper chirps for each count (can be muted)


  • Output: Stereo 3.5 mm jack sends signal to standard headset, computers, data loggers: Nominal 6V pulse 1 kOhm impedance.
  • Input: 2.5 mm mono jack provides calibration input. 0–3.3 V, > 5 µs width, rising edge triggered.

Readout holds at full scale in fields up to 100 times the maximum reading

Temperature Range:
-20° to +50° C , -4° to +122° F

1 AA alkaline battery provides over 2,000 hours of battery life at normal background radiation levels (3 to 6 months of continuous use is typical).

150 x 80 x 30 mm (5.9″ x 3.2″ x 1.2″)

225 grams (8 oz) including battery

Certified; Emissions: EN 55011:2009 +A1:2010 (Class B emissions limits); EN 61326-1:2006 (Class B) RF Emissions; Immunity: EN 61326-1:2006 (Annex C) Portable Test and Measurement Equipment; EN 61000-4-2:1995 (ESD); EN

Optional Accessories:
Computer Software and Cable; Red Protect® Boot; Wall Mount
Holder; GeigerLink™ Kit

Specifications subject to change without notice.

Please remember to use caution when handling or working around radiation sources and radioactive materials.

Please note: Radalert ® and Protect® are registered trademarks of International Medcom.

Download Radalert 200 Specifications



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