Feature: 1. Multi Function: Our detector has 5 detection units, usv/h, uGy/h, mR/h, cps, cpm, you can change them at your will, able to meet most of your needs for using. 2. Long Endurance: When the battery is fully charged, the 24 hour endurance time can reach more than 6 days, and the endurance time can reach 130 hours. 3. Widely Use: It has a wide range of application and can be used for stone detection, hospital testing, aircraft high altitude detection and subway security inspection. 4. IC Processor: Using American 64 bit IC processor, Geiger counter has high accuracy. After upgrading, the error is 2% within 6.6sv, which improves the radiation response speed, and the response speed is less than 1 second. 5. Alarm Function: Intelligent protection, triple alarm, dose over reading value alarm, cumulative dose over threshold alarm, counter blocking alarm, self contained alarm mode, sound, vibration and light. With dual metering function, current content and cumulative content. (You can view the current content, or view the amount of radiation received for a long time.) Specification: Item Type: Radiation Detector Material: ABS Product Size: Approx. 99 x 69 x 24 mm / 3.8 x 2.7 x 0.9 in Weight: Approx. 190 g / 6.7 oz Detection Rays: γ, X and β Rays Detector: Energy Compensated GM Tube (Geiger Counter Tube) Dose Equivalent Rate: 0.00-9999uSv/h (100mSv/h) Accumulated Dose Equivalent: 0.00uSv-999.0mSv Language: Chinese, English (Arbitrary Switching) Energy Range: 50keV-1.5MeV≤±30%/ (For 137Cs I) Relative Inherent Error: ≤±5% (137Cs 1mS/h) Sensitivity: 80CPM/uSv/h (For Co-60) Alarm Threshold Setting Parameters: Dose Rate: Optional At 0.5, 1.0, 1.5, 2.0., 2.5, 5.0, 10.0, 50.0, 100.0uSv/h Accumulated Dose: 0.05, 0.5, 1.0, 1.5, 2.0, 5.0, 10.0, 20.0, 50.0, 100.0mSv Optional Dose Rate Unit: usv/h, uGy/h, mR/h, cps, cpm (Arbitrary Switch) Power Supply: 2 AAA Batteries (Not Included) Alarm Mode: Sound, Vibration, Light Usage: used for testing stone radiation, hospital bone scanning, Cs, Co, Iodine, Isotope. Package List: 1 x Radiation Detector ( Without Battery )1 x Rope1 x Manual