Radalert

Radalert 100X™: Nuclear Radiation Monitor

Radalert

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Description

The Radalert 100X measures alpha, gamma, and X-radiation. Its digital display shows readings 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 useradjustable level.
• Monitor personal radiation exposure
• Monitor an area or perimeter
• Detect radiation leaks and contamination
• Ensure regulatory compliance
• Monitor changes in background radiation
• Demonstrate principles of nuclear physics
• Check for radioactive minerals in the earth

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 1,100

mR/hr: .000 to 110

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 to 500

mR/hr: .001 to 50

CPM: 1 to 60,000

CPS: 1 to 1,000

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 90-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 counts to computers, data

loggers, other CMOS-compatible devices, earphones, and

educational data collection systems. 0–9 V, 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: 9 Volt or AA (some models) alkaline battery provides typically

2,000 hours battery life at normal background radiation levels.

Battery life decreases as radiation level rises.

Size: 150 x 80 x 30 mm (5.9″ x 3.2″ x 1.2″)
Weight: 225 grams (8 oz) including battery
Certifications: 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 61000-4-

3:1997 (EM); RoHS Compliant; Meets WEEE standards

Optional

Accessories:

Computer Software and Cable; Red Protect® Boot; Wall Mount

Holder; GeigerLink™ Kit

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