For the detection of 20mR/h ~ 120mR/h of gamma rays and 100 ~ 1800 off variables / points of the soft ray.Sound and light alarm.Interrupt the output interface, through this interface can be connected to the microcontroller and thendisplayed on the LCD.Supports most of the Geiger tube: M4011, -5, SBM20, J305, etc. (the 330~600V operating voltage of the Geiger tube can be supported).Support the computer (PC) data acquisition, Matlab analysis and processing.Model:-1602-NANOGeiger tube parameters:Technical parameters diameter: 10 +/- 0.5mm length: 90 +/- 2mmStarting voltage: less than 350VRecommended operating voltage: 380VMinimum plateau length: 80VMaximum plateau slope: 10%/80VExtreme operating voltage: 550VThe maximum count rate: 25 times / minLife: more than 1 x 10^9 pulseMedium temperature: -40 ~ 55Item size: 118 x 63mm / 4.6 x 2.5inchcolour: blue + greenMaterial: plastic + metalPackage Contents:1 x Geiger Counter KitOnly the above package content, other products are not included.Note: Light 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.