Material: ABS

Battery: 1 * built-in 750mAh battery (included)

Sensors: Geiger-Muller coungter tube

Ray Detection: β, γ and X rays

Measurement ranges: 0.08uSv-50mSv

Measurement accuracy: -17% to +25% based on 137 Cs y

Endurance: 20 days (continuous measurement, no particle sound on)

Charging connector: TYPE-C connector

Alarm response time td: <10s

Alarm threshold deviation: -17% to +25%