Ulisem Carbon Monoxide Detector, Battery Powered, Gas Detector with Display and Temperature Indicator

LM 201A carbon monoxide detector certified and tested according to EN 50291. Display showing temperature, CO concentration, battery charge level, operating status, and alarm, as well as three colored LED indicator lights showing the CO detector's status. LED indicator with self-test function, TEST button for gas detector testing, error warning in case of malfunction, low battery warning signal. Early warning system for alerts at various CO concentrations – CO alarm at dangerous CO concentrations. Mute the sound for 5 minutes in case of a false alarm. Package contents: 1 x LM 201A type CO detector, 3 x 1.5V DC AA type batteries. Effective detection gas: Carbon monoxide. Detection method: Electrochemical sensor. Operating voltage: 4.5V DC. Working environment: Temperature 0℃ to 45℃, Relative humidity: 0-90% RH. Standby current: 80 ± 10 uA. Alarm current: 45~75 mA. Alarm sound level: > 85 dB (distance 1 m). Power indicator: Flashes once every 45 seconds. Fault detection: Detection every 2 minutes. Applicable occasions: Home, single hotel room, warehouse, basement.