Features 1、Main Function: The nuclear radiation detector kit is used to detect 20mR/h‑120mR/h γ rays and 100‑1800 soft switches β Variation, point, cm2 of ray. 2、Multi Purposes: Support sound and light alarm. This interface can be connected to a microcontroller and then displayed. Support computer (PC) data acquisition, Matlab analysis and processing detection. 3、Product Parameter: Power consumption current: 20mA; Starting voltage:&lt;350V; Recommended working voltage: 380V; Limit operating voltage: 550V; Maximum background count rate: 25 times/minute. 4、Applicable People: Suitable for those who study on the mechanism of gas ionization, for detecting house radiation, for no welding experience, for students in circuit and electronic welding, etc. 5、DIY Electronics Kit: The kit is suitable for nuclear radiation detector. Reasonable circuit layout design. Unleash your creativity for the most unique electronics! Specifications Item Type: Geiger Counter Kit Material: Circuit board Weight: Approx. 123g/4.34oz Size: 5.1x10x1.2cm/2.01x3.94x0.47in Use: Nuclear radiation detection Power Consumption Current: 20mA Starting Voltage:<350V Recommended Working Voltage: 380V Minimum Ping Length: 80V Maximum Ping Slope: 10%/80V Limit Operating Voltage: 550V Maximum Background Count Rate: 25 times/minute Life: >1x109 pulse Detection: X β γ rays Package List 1 x Acrylic Plate 1 x Circuit Board 1 x USB Line 1 x Geiger Tube 4 x Long Screw 4 x Short Screw 4 x Nut 4 x Red Gasket