Radiation Monitor Intelligent Alarm LCD Display Portable Radiation Dose Counter Alarm Item Type: Radiation Monitor Material: ABS Model: NR 950 Detection Ray: γ, X and hard β rays Detector: Energy compensated Geiger counter tube, with improved low energy response Normal Content Standard: Within 0.5uSv/h Measurement Range: a: Dose equivalent rate: 0.00~1000μSv/h (maximum 10mSv/h) b: Cumulative dose equivalent: 0.00μSv~500.0mSv Energy Response: 48KeV~1.5MeV ≤±30% (for 137Cs-) Relative Inherent Error: Model: NR 950 type ≤±3% (137CS1mSv/h) Sensitivity: 80CPM/uSv/h (for Co-60) Alarm Threshold: a. Dose Rate: Can be selected from 0.5, 1.0, 1.5, 2.0, 2.5, 5.0, 10.0, 50.0, 100.0μSv/h b. Accumulated Dose: Can be selected from 0.05, 0.5, 1.0, 2.0, 5.0, 10.0, 20.0, 50.0, 100.0mSv Measurement Display: Dose rate displayed per second, protective alarm response less than 5 seconds Usage Environment: Temperature: -10℃~+45℃ Relative Humidity: ≤95% (+45℃) Battery: AA x 2 (shipped without battery)