Purpose of use - Measurement of gamma radiation equivalent dose rate. - Measurement of gamma radiation equivalent dose. - Evaluation of surface contamination by beta radionuclide. - Clock, alarm clock. Household application - Apartment, building and construction control; personal radiation safety; ground-surface continuous territories control; and vehicles control. - Evaluation of radiation contamination of food products. - Visual aids for educational institutions. Features Three independent measuring channels with alternate indication of data on the single liquid crystal display. Built-in gamma, beta sensitive Geiger-Muller counter. Automatic setting of measurement intervals and ranges. Audio signaling of each detected gamma-quantum and beta-particle. Programming of audio alarm threshold level relative to gamma radiation dose rate. Digital display. Two AAA size batteries. Four-level indication of battery discharge. Shock resistant frame. Small weight and dimension parameters. Specifications Measurement ranges and basic relative errors: Gamma radiation equivalent dose rate (137Cs) uSv/h 0,1…999,9; ±25% Gamma radiation equivalent dose (137Cs) mSv 0,001…9 999; ±25% Beta-particles flux density with possible evaluation of surface contamination by beta radionuclide (90Sr 90Y) 1/(cm²·min) 10…100 000; Energy ranges of measurement and energy dependence: Gamma radiation MeV 0,05…3,0; ±25% Beta radiation MeV 0,5…3,0; Measurement time intervals seconds 5…70 Battery life hours 6 000 Operating temperature range °C -10… 50 Weight kg 0,15 Dimensions mm 120×52×26
