1、Real Time Monitoring: Real time monitoring and timely improvement of air quality around you, guarding your safety. 2、LCD Display: Smart smoke detector features a large LCD display with adjustable backlight for easy nighttime viewing. 3、Data Logging: CO detector for Tuya application and data logger, 1ppm accuracy, high accuracy, defend your safety. 4、Long Battery Life: Smart smoke detector has a built in lithium battery that lasts 6 to 8 hours without recharging. 5、ABS Material: CO alarm is made of fire resistant ABS material, wear resistant and durable, can be used for a long time. 1 x CO Alarm1 x Power Cord2 x User Manual Item Type: CO AlarmMaterial: ABSWeight: Approx. 372g / 13.1ozVoltage: 5VBattery: Lithium Polymer Battery 1400mAh (Included)CO Detection Range: 0-1000ppmAccuracy: 1ppmCO Detection Error: ±5% or ±10ppmResponding Time: <60 SecondsAlarm Decibel: 85dbSmoke Sensitivity: 01% db/m- 0.3% db/mTemperature Detection Range: -20℃-60℃±3℃Humidity Detection Range: 5%-95%±5%Operating Temperature: 0℃-50℃, 32℉-122℉Working Humidity: 5-95%