1Main Application: Geiger counter is used for the detection of 20mR/h120mR/h of gamma rays and 1001800 off variables/points of the soft beta ray._x000D_ 2Interrupt Output Interface: Geiger counter can be connected to the microcontroller and then displayed on the LCD through interrupt output interface._x000D_ 3Support Function: Geiger counter nuclear radiation detector supports computer (PC) data acquisition, Matlab analysis and processing._x000D_ 4Audible and Visual Alarm: Nuclear radiation detector is equipped with sound alarm and light alarm function, providing you great using experience._x000D_ 5Reliable Performance: Recommended working voltage is 380V. Minimum platform length is 80V. Limit operating voltage is 550V. 1 x Acrylic Plate1 x Circuit Board1 x USB Cable72 x Accessories1 x Geiger Tube Item Type: Radiation DetectorMaterial: Circuit BoardColor: As Pictures ShownWeight: Approx. 278g / 9.8ozPlug: USB CableM4011 Pipe Specification:Diameter: 10 0.5mmTotal Length: 902mmStarting Voltage: <350VRecommended Working Voltage: 380VMinimum Platform Length: 80VMaximum Platform Slope: 10%/80VLimit Operating Voltage: 550VMaximum Background Count Rate: 25 Times per MinuteLife: >1 x 109 PulsesDetection: X Rayt