Pen Type Nuclear Radiation Detector Geiger Counter Sound Light Alarm Sonoff but a common HiFi PreAmp

but a common HiFi PreAmp is large and occupies a large area

humidity: less than 80%

Weight: 408g

With silicone pad improve your devices safety

264 1080p 60fps video encoding

Pen Type Nuclear Radiation Detector Geiger Counter Sound Light Alarm Sonoff but a common HiFi PreAmp1. Adopt GM counter tube, mainly used for monitoring X, Y and rays, high sensitivity and accurate measurement. 2. OLED display screen: clear display of instantaneous dose, average dose and accumulated dose rate, visible at night. 3. Easy to use: one key start, automatic test, if the test result exceeds the standard, there is an acoustic and optical alarm. 4. Built in lithium battery power supply, power saving and durable. 5. 0. 7 ounces of weight and