Standard model of a Geiger-Müller tube able to detect α, ß, γ and x-rays.

Easy to use and Multipurpose

Mica output window
Results by graduated scale, flashing LED and acoustic signal
Operates up to 2000 hours on one set of batteries
Anti-saturation circuit up to a value equivalent to 100 times the maximum reading in the greatest interval
Choice of 3 measurement ranges
Results in milliroentgens/hour and counts/minute (cpm) in 3 periods
Factory-calibrated using a pulse generator
Standard ±15% of the full scale relative to Cesium-137

RANGE:	0,5 – 5,0 – 50 mR/h;
SUPPLY:	9 V alkaline battery, 2000 hour lifetime
WEIGHT:	0,22 kg (0.48 lb)
DIMENSIONS (WXHXD):	70x210x48mm (2.75×8.25×1.87 in)
SENSITIVITY Α:	detected down to 2,5 MeV, with typical detection efficiency greater than 80% at 3,5 MeV
SENSITIVITY SS	detected at 150 keV with 75% typical detection efficiency
SENSITIVITY GAMMA AND X RAYS:	detected down to 10 keV through the end window and to 40 keV through the case

Radiation Detector