Wireless Optical-Electronic Smoke Detector Astra-421 RC for Fire Safety

Fire detector smoke radio channel "Astra-421" RK is designed to detect fires accompanied by smoke in enclosed spaces and transmitting notices over the radio channel 433 MHz to the radio receiver systems Astra-RI-M and Security Hub. The range of the radio channel is 300 m. Power supply from 2 CR123 batteries, main and backup (included). Measurement and transmission over the radio channel dust/smoke smoke chamber, residual battery capacity, ambient air temperature.