The Monitor 200 measures alpha, beta, gamma, and x-rays. Its digital display shows readings in your choice of CPM, CPS, ÁSv/hr, mR/hr, or in accumulated counts. It has 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!
Monitor 200 Quick Specs
Compare Digital Detectors
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.
- .001 (1ÁR) to 200 mR/hr
ÁSv/hr - .01 to 2000
CPM - 0 to 214,000
CPS - 0 to 3575
Total Counts - 1 to 9,999,000 counts
Typically ▒15% from factory, ▒10% (NIST)
CPM/mR/hr referenced to Cs137
Detects alpha down to 2.5 MeV; typical
detection efficiency at 3.6 MeV is greater
Detects beta at 50 keV with typical 35%
Detects beta at 150 keV with typical 75%
Detects gamma and x-rays down to 10 keV
typical through the window, 40 keV minimum
through the case.
Readout will OVERRANGE in radiation fields
as high as 100 times the maximum reading.
Selectable Alert Set
.001 - 100 and CPM 1 - 350,000. Pulsating
beeper sounds the alert. Adjustable alert
levels are used for mR/hr / CPM, and ÁSv/hr
/ CPS. 70db @ 1m. Alarm will sound when in
Timer Mode when set alarm threshold is
Graphic LCD with Backlight.
LED flashes with each count.
with each count (can be switched off for
for use with Observer USB Software Family
alkaline batteries (included)
68 X 33 mm (5.5 X 2.7 X 1.3 in.)
Carrying Case, Xtreme Boot, Stand, Mini-USB
Cable, Observer USB Software Download ,
Certificate of Conformance
2ea AA Batteries
NIST Calibration at purchase