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 |
