Digital - Monitor 200
The Monitor 200 measures alpha, beta, gamma, and x-rays. Its digital display shows readings in your choice of CPM, CPS, μSv/hr, mR/hr, or in accumulated counts. It has a digital display, a red count light, and a beeper that sounds with each count detected.
Other features include an adjustable timer, and selectable alert. With the free Observer USB Software Family, you can set computer alarms, calibrate your instrument, and download your collected data from the internal memory for easy reporting!
Detector
Halogen-quenched GM tube with thin mica end window. Mica window density 1.5-2.0 mg/cm2. Effective window diameter is .360 inch. Side wall is .012 inch thick.
Operating Range
mR/hr - .001 (1μR) to 200 mR/hr
μSv/hr - .01 to 2000
CPM - 0 to 214,000
CPS - 0 to 3575
Total/ Timer - 1 to 9,999,000 counts
Accuracy
Typically ±15% of reading. ±10% typical (NIST)
Alert Set Range
mR/hr .001 - 100 and CPM 1 - 350,000
Internally mounted beeper. 70db @ 1m.
(can be switched off for silent operation)
Count Light
Red LED flashes with each count.
Outputs
USB for Observer USB Software Family
Size
140 X 68 X 33 mm (5.5 X 2.7 X 1.3 in.)
Energy Sensitivity
1070 CPM/mR/hr referenced to Cs137
Detects alpha down to 2.5 MeV; typical detection efficiency at 3.6 MeV is greater than 80%.
Detects beta at 50 keV with typical 35% detection efficiency.
Detects beta at 150 keV with typical 75% detection efficiency.
Detects gamma and x-rays down to 10 keV typical through the window, 40 keV minimum through the case.
Display
Backlit Graphic LCD
Audio Indicator
Sounds with each count (can be switched off for silent operation)
Anti-Saturation
Readout will hold at full scale in radiation fields as high as 100 times the maximum reading.
Power Requirements
2 AA alkaline batteries
Includes
Carrying Case, Xtreme Boot, Stand, Mini-USB Cable, Observer USB Software Download, Certificate of Conformance
Limited Warranty
1 year limited warranty
