Technical specs (manufacturer)
Sensor: 48mm Geiger counter tube
Measure range: 0.08uSv - 50mSv
Measure precision: -17%...+25% based on Cs-137 y
Working environment: temperature -20°C...50°C; humidity <95% RH without dew
size: diameter 15.3mm, length 108mm, weight 19g
Durable time: 50Hour (continue measure, screen dormant)
Charging time: 2-3 hours
Charging joggle: TYPE-C joggle (green light normally lighting when charging, extincted when fully charged)
Alarm responding time td: <10s
Product features:
1. Four display modes, instantaneous dose, average dose, cumulative dose, and peak dose rate
2. Programmable audible and visual alarm
3. One-button reset, startup, and instant test
4. Small-Only 18 grams and measures beta, gamma (X-rays)!