Alert Analog Radiation Detector
警報模擬輻射探測器
* Specifications
Operating range 0 to 0.5, 0 to 5, 0 to 50 mR/hr 0 to 500, 0 to 5,000,
0 to 50,000 CPM or 0 to 500 μSv/hr 0 to 50 mR/hr.
Range switch X1, X10, X100, battery check
Accuracy Typically ±15% of reading (referenced to Cs-137)
Sensor
Halogen-quenched uncompensated GM tube. Thin mica window 1.5 to 2.0 mg/ cm2 thick
Display Analog bar graph. CPM/mR/hr scale default (holds full scale in
fields as high as 100X max reading)
Energy sensitivity Alpha Beta
Down to 2.5 MeV; typical detection efficiency at 3.6 MeV >80%.
At 50 keV with 35% efficiency; at 150 keV with 75% efficiency.
Gamma & x-rays
Down to 10 keV through the window, 40 keV minimum through the sidewall. Normal background is approximately 10 to 20 CPM.
General Specifications
Audio Internally mounted beeper (can be muted for silent operation)
Output 3.5 mm headphone jack with pulse out
Power 9 V battery
Dimensions 8.25" x 2.75" x 1.875" (210 x 70 x 48 mm)