Digit LCD Display Radiation Detection Meter Radiometer Tester; Product Description:1. Display units in uSv/h, uRem/h and mRem/h.2. Built-in a GM tube.3. Quick response to the radiation strength of Beta(B), Gamma(y) and X-ray.4. Auto Ranging.5. Automatic detection, easy setting.6. A beeper chirps with each radiation count.7. Audio alarm setting function. Application: Radiation Monitor are the survey meter in measuring the beta, gamma and x-ray radiation. It is useful in monitoring the environment/home safety, nuclear, medical, mining and metal industries. It is also ideal for the border control, customs and cargo inspections. Specification:Display:3 1/2 digits, bright LCD with the maximum reading of 1999; Units ?Sv/h or ?Rem/h; DisplayRange:0.01?Sv/h~19.99?Sv/h or 1?Rem/h~1999?Rem/h; Measurement Range: 0.5?Sv/h~19.99?Sv/h or 50?Rem/h~1999?Rem/h; Resolution:0.01 uSv/h; 1uRem/h; Test Radiation: Beta(B ) and Gamma(y) ray.Sampling time:20 second/ times; 5 second/ times Energy dependency:0.1 to 1.25 Mev; Accuracy:+/-15% of reading.Alarm Settlings:default value : 0.50?Sv/h,setting range: 0~19.99?Sv/h; default value0.5?Sv/h; setting range: 0~199.9?Sv/h; Auto Power Off:default value : 30 minutes; setting range: 0 ~ 60 minutes ( 0: disable the auto power off); Operation Environment:0?C~50?C ; below 80% RH; Storage Environment:-20?C~60?C ; below 75% RH; Battery Type:006P 9V; Battery Life:about 50 hour; Dimension; 143 x74 x34mm; Weight; 220g