1/2 PCS J305 Geiger Counter Tube for Nuclear Radiation Detector GM Tube Radiation Monitor Accessory

Features Tin oxide cathode coaxial cylindrical thinshell structure wall density of 50±10cg cm2 pulse applied type halogen tube Support provide the detection γ Ray of 20mR h 120mR h and soft β Ray in r ange of 100 1800 decay minutes CM2 The ambient medium temperature is from 40°C to 55°C Easy installation it can be installed on the geiger counter without need tools Specifications Name J305 Geiger GM TubeMaterial glass metalWorking temperature 40℃ to 55℃Minimum plateau length 80VMax plateau slope rate 10 80Vlimiting operating voltage 550VMax background count rate 25 times minLifespan 1 109 pulseItem size 88 10 10mm 3 46 0 39 0 39inItem weight 18g 0 63ouncePackage size 145 90 110mm 5 71 3 54 4 33inPackage weight 55g 1 94ounce Package includes 1 x J305 Geiger GM Tube