Features:

Tin oxide cathode, coaxial cylindrical thinshell structure (wall density of 5010cg/cm2), pulse applied type halogen tube.

Support provide the detection -Ray of 20mR/h-120mR/h and soft -Ray in r-ange of 100-1800 decay/minutesCM2.

The ambient medium temperature is from -40C to 55C.

Easy installation, it can be installed on the geiger counter without need tools.

Specifications:

Name: J305 Geiger GM-Tube

Material: glass+metal

Working temperature: -40 to 55

Minimum plateau length: 80V

Max plateau slope rate: 10%/80V

limiting operating voltage: 550V

Max background count rate: 25 times/min

Lifespan: 1*109 pulse

Item size: 88 * 10 * 10mm / 3.46 * 0.39 * 0.39in

Item weight: 18g / 0.63ounce

Package size: 145 * 90 * 110mm / 5.71 * 3.54 * 4.33in

Package weight: 55g / 1.94ounce

Package includes:

1 x J305 Geiger GM-Tube