monoxide concentration data through mobilephone APP, users can check the indoor carbon monoxide concentration anytime, anywhere, allowing users to keep track of the air condition in their home, so as to find and deal with leakage dangers in time. You can link valves, exhaust fans, lights, switches, alarms, and other devices to realize intelligent home linkage and improve home safety.【Multiple Alarm Methods】: Real-time monitoring of CO content in the environment, when the CO concentration is too high, it will promote multiple alarm methods, supports 80dB high decibel on-site alarm, APP alarm, SMS cellphone alarm, multiple guarantees, let you keep track of carbon monoxide concentration at home. 【High Compatibility】: Supports WiFi/ZigBee (optional) communication protocol, compatible with a variety of devices, realizes intelligent home linkage, WiFi version does not need to be used with gateways, ZigBee version needs to be used with gateways, you can choose according to your demands.【Wide Applications】: Powered by a commonly used USB power cable, no need for a built-in battery, more convenient to use. Suitable for a variety of complex environments, such as homes, greenhouses, camping barbecues, factories, automobiles, and so on, it can be widely used in a variety of occasions.Specifications:Name: CO Concentration DetectorMaterial: ABSVersion: Tuya WiFi version, Tuya ZigBee version (optional)Detection technology: electrochemical carbon monoxide sensorCommunication protocol: WiFi/zigbee according to your selectionAPP: Compatible with tuya APP/smartlife APPAlarm mode: 80dB on-site alarm/APP alarm/SMS/telephone alarmItem size: 100 * 100 * 35mm / 3.94 * 3.94 * 1.38inPackage size: 110 * 110 * 40mm / 4.33 * 4.33 * 1.57inPackage weight: 100g / 3.53ouncePacking List:1 * CO Concentration Detector