Feature: 1. GEIGER COUNTER TUBE: The nuclear radiation detector uses high accuracy Geiger counter tube sensor, which can detect α、β、γ and X rays, with high sensitivity. 2. PULSE COUNTING: This handheld radiation detector supports pulse counting function, indicating pulse counts per second and minute, stable and reliable. 3. 4 DIGIT LCD SCREEN: The radiation monitor adopts 4 digit LCD digital backlight screen with analog bar indication function, displaying dose values, time, date, etc. 4. DATE STORAGE: Supports radiation measuring value accumulation and measuring unit conversion, recording 1 set of measuring data per minute, with 4000 sets data storage space. 5. BLUETOOTH FUNCTION: Support Bluetooth data transmission, with space transmission distance of up to 10m, real time remote data transmission display, analysis, and recording. Specification: Item Type: Nuclear Radiation Detector Measurement Ray Type: α, β, γ and X rays Measurement Range (Automatic Range Selection): Radiation Dose Rate: 0.01Sv/h-1000Sv/h Pulse Dose Rate: 0-4000cpm, 0-4000cps Accumulated Radiation Dose Value: 0.001Sv-9999Sv Accumulated Pulse Dose Value: 0-9999 Sensitivity: 108 pulses or 1000cpm/mR/hr in a Cobalt 60 ray environment with an energy of 1Sv/h α Ray: From 4.0MV β Ray: From 0.2MV γ Ray: From 0.02MV X Ray: From 0.02MV Accuracy: <10% (below 500Sv/h), <20% (above 600Sv/h) Ray Selection Switch: α β γ X ray combination selection Sensor: Halogen Filled Detector (Geiger counter tube) Output Port: Bluetooth wireless data transmission (spatial transmission distance of 10m) Average Time: 2-120s manual or automatical adjustment Display: 4 digit LCD large screen, with bar chart display, can display radiation dose rate, pulse dose, rate radiation dose cumulative value, pulse dose cumulative value, time, date, alarm value, maximum radiation dose rate, radiation type, measurement dynamic icon, indicator of battery power inside the instrument, etc. Alarm Function: Can freely set the alarm value, the default setting is 5uSv/hr Normal Natural Ambient Radiation Value: <0-0.2uSv/h Storage Function: Can automatically store 4000 sets of data, record one set of data per minute (including real time date, time, measurement value and measurement unit) Bluetooth Data Transfer: Transfer 1 set of data per second (including real time date, time, measurement value and measurement unit) Software: Data real time remote transmission display, analysis, record Detector Operating Temperature: 0℃-50℃ Power Supply: 4 x 1.5V AA alkaline battery (not included). Package List: 1 x Nuclear Radiation Detector1 x CD1 x Wireless Receiver1 x Storage Box1 x Storage Box Handle1 x User Manual