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 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!
Halogen-quenched GM tube with thin mica end window.
Mica window desity 1.5-2.0 mg/cm2 .
Effective diameter of window is 0.360 in.
Side wall is 0.012 inch thick.
mR/hr -0 .001 (1µR) to 200 mR/hr
CPM - 0 to 214,000
µSv/hr -0 .01 to 2000
CPS - 0 to 3575
Total Counts- 1 to 9,999,000 counts
Accuracy (Referenced to Cs137)
Typically ±15% from factory, ±10% with NIST Source Calibration
1070 CPM/mR/hr referenced to Cs137.
Detects Alpha down to 2.5 MeV. typical detection efficency at 3.6 MeV is greather 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 through the detector window. , 40 keV minimum though the case.
Selectable Alert Set Range
mR/hr .001 - 100 and CPM 1 - 350,000.
Pulsating beeper sounds the alert.
Adjustable alert levels are used for mR/hr / CPM, and µSv/hr / CPS. 70db @ 1m.
Alarm will sound when in Timer Mode when set alarm threshold is reached.
Meter will hold at OVER RANGE in fields as high as 100 times the maximum reading.
Graphic LCD Display with Backlight
Red LED flashes with each radiation event
Internally mounted beeper (can be switched off for silent operation)
USB for use with Free Observer USB Software for PCs.
Two AA alkaline batteries (included)
140 X 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
1 year limited warranty