1 Set J305 Geiger Counter Tube Nuclear Radiation Detector Tube Radiation Monitor Accessory with Ion

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.Comes with one PVC tube for convenient transmission.A perfect replacement accessory for IOT--v1.1 IOT open-source geiger counter -tube.Name: J305 Geiger -TubeWorking temperature: -40 to 55Minimum plateau length: 80VMax plateau slope rate: 10%\/80Vlimiting operating voltage: 550VMax background count rate: 25 times\/minColour:transparentMaterial:GlassPackage Contents:1 x J305 Geiger tube1 x ion chamberOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +\/- 1-3cm.