Feature:1. WORKING RANGE: Nuclear radiation detector, the measurement range is 0.01-50000Sv/h, suitable for radiation detection in home, industrial, and healthcare.2. HIGH ACCURACY: Using glass geiger counter tube, it has sensitive sensing and quick response, ensuring the accuracy of measurement results.3. ALARM FUNCTION: This nuclear radiation monitor supports high decibel sound and vibration alarms, and can set alarm thresholds independently.4. OTHER FUNCTIONS: With Chinese and English voice, 1-9999min adjustable cumulative time, auto maximum holding, fast and smooth measuring modes.5. PLASTIC HOUSING: The shell of the radiation detector is made of ABS engineering plastic, which has high strength, falling and wear resistance.Specification:Item Type: Radiation DosimeterModel: GM 100HMaterial: ABSPower Supply Method: 1 x AA dry battery 1500mAh (built in), Type C cable direct connection power supplyRay Type: Hard rays, rays and X raysDetector Type: Glass Geiger Counter TubeMeasurement Range: 0.01-500000Sv/hMeasurement Accuracy: 15%Sensitivity Co (60): 2100CPM/MR/hDisplay Resolution: 0.01Sv/hDetector Life: 1x10 PulseEnergy Response: 50KeV-1.5MeVVoice: Chinese and EnglishAccumulated Time: 1-9999 minutes adjustableAccumulated Dose: Automatic accumulation, can be manually resetMaximum Hold: Automatically hold the maximum valueCurve Observation: Curve graph of the last hour, and automatic calculation of maximum and average valuesMeasurement Mode: Fast and smooth modesMeasurement Unit: Sv/h, mR/h, CPS, SvAlarm Value Function: Alarm threshold can be setAlarm Method: Sound, VibrationWorking Temperature: -20-60Working Humidity: 5%-95%RH (No condensation)Battery Life: Approximately 330 hours in standby mode.Package List:1 x Radiation Dosimeter1 x Power Supply CordNote:Please read the manual carefully before use.