Radalert 200? Radiation Survey Meter for First Responders Description：

Datasheet

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

Specifications

Detector:
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

Display:
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

Calibration:
Cesium-137 (gamma)

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

Accuracy:
±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

Timer:
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

Audio:
Beeper chirps for each count (can be muted)

Ports:

• 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.

Anti-Saturation:
Readout holds at full scale in fields up to 100 times the maximum reading

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

Power:
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).

Size:
150 x 80 x 30 mm (5.9″ x 3.2″ x 1.2″)

Weight:
225 grams (8 oz) including battery