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)

Alarm

Internally mounted beeper (can be switched off for silent operation)

Count Light

Red LED fashes with each count.

Outputs

USB for Observer USB Software Family

Size

Energy Sensitivity

1070 CPM/mR/hr referenced to Cs137

• Detects alpha down to 2.5 MeV; typicaldetection efficiency at 3.6 MeV is greater than 80%.

• Detects beta at 50 keV with typical35% 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