DRM-1D Radiation Area Monitoring System

Detector CsI (TI) (30x30mm) crystal optically coupled to PMT with 0.5 mm aluminum housing and solid Mu Metal shield
Measuring Range 1 μR/h to 9999 μR/h (0.001 mR/h to 9.999 mR/h)
Overflow Alarm for Reading > 9999 μR/h
Overload for Field > 1 R/h
Sensitivity 6.8 cps/μR/h for 137-Cs
Dimension (LxDxW) 7’’x3.5’’x4.25’’ (17.78 x 8.89 x 10.80 cm)
Battery Life 8 hours (with alarm and display unit: 4 hours)

ELECTRICAL CHARACTERISTICS
Power Source External power supply and battery backup
External Power Supply Input 120/250 Vac Output 9-15 Vdc with locking connector
Battery Back-up Three (3) 1.2v NiMH 2100mA rechargeable:
Battery Operating Life Up to 12 hours continuous operation

ENVIRONMENTAL CHARACTERISTICS
Temperature Range Operation: -10°C to 50°C (15oF to 122oF); Storage: -20°C to 60°C
(-5°F to 140°F)
Humidity Range 10% to 95% RH (non-condensing)

MECHANICAL CHARACTERISTICS
Dimensions 108mm x 178mm x 64 mm (4.25" W x 7" L x 2.5" H)
Weight 900 gr (2 lbs.)