Integrity Design and Research Radalert 100 geiger counter

• Monitor personal radiation exposure
• Monitor an area or perimeter
• Detect nuclear radiation leaks and contamination
• Ensure regulatory compliance
• Monitor changes in background radiation
• Demonstrate principles of nuclear physics
• Check for radioactive minerals in the Earth

Sensor: Halogen-quenched Geiger-Meuller detector with mica end window (LND712); detects Alpha, Beta, Gamma, and X-radiation. End window density is 1.5-2.0 mg/cm�. Side wall is .012″ #446 stainless steel.
Display: 4-digit liquid crystal display with mode indicators
Operating range: mR/hr: .001-110.00 mR/hr (Cs-137); CPM: 0-350,000; Total: 0-9,999,000 counts
Calibration: Cesium 137 (gamma)
Sensitivity: 1000 cpm/mR/hr referenced to Cs-137
Accuracy: �10% typical; �15% max.
Alert: User-adjustable alert level to 50 mR/hr & 160,000 CPM
Count light: Red LED flashes with each count
Beeper: Chirps for each count (can be muted)
Outputs: Stereo 3.5 mm jack sends counts to computers, data loggers, several educational data collection systems and other CMOS-compatible devices. Submini jack provides audio output to an external earpiece, amplifier, or tape recorder.
Input: Mono 2.5 mm lack provides electronic calibration input
Power: One 9-volt alkaline battery; average battery life is 2160 hours at normal background, 625 hours at 1 mR/hr with beeper off
Size: 150 x 80 x 30 mm (5.9 ” 3.2″x 1.2″)
Weight: 225 grams (8 oz) including battery
Options: European SI units (mSv/hr); Computer cable and software (IBM PC compatible)

Specifications subject to change without notice.