This wireless smoke alert detector is made from PC and ABS housing materials, 360 sensing detection, with stable performance microprocessor, all-round smoke detection alarm, fast response time and long-term operation. Once the smoke concentration exceeds the normal standards, the alarm will immediately make sound and light alarm, and push the alarm information to your cellphone APP via the network to receive the alarm message anytime, anywhere, and take timely measures to respond to the situation. With the fault alert feature, it is widely used in multiple locations such as homes, warehouses, hotels, shopping malls, companies, hospitals and restaurants.Features:Fire-retardant Housing: Made from PC and ABS housing materials, it is fire-resistant, high temperature-resistant and suitable for long-term use.360 Sensing Detection: Stable performance microprocessor, all-round smoke detection alarm, fast response time, long-term operation.Built-in Protective Net: It blocks the intrusion of foreign objects and ensures proper operation of internal sensors.80dB Buzzer High Decibel Alarm: Smoke alert detectors within 3.0m of the alarm sound at 80dB or more, responding in a timely manner to help with rapid fire response.Remote Alarm: Once the smoke concentration exceeds the normal standards, the alarm will immediately make sound and light alarm, and push the alarm information to the cellphone APP via the network to receive the alarm message anytime, anywhere, and take timely measures to respond to the situation.Cellphone APP Control: Use your cellphone APP to control your home safety at all time. Easy management of equipment status, easy one-click silencing.Self-Test Button: With the fault alert feature, press the self-test button for a regular self-test to ensure the alarm is working properly, in normal circumstances, a quick flash of the LED and a continuous beep will be emitted, and if only two sounds are emitted, indicating equipment failure.Low Battery Reminder: When it is at low battery, the alertor will transmit a wireless low voltage code, real-time protecting your safety, LED lights flash once every minutes and sound a "drop".Smoke Detection Type: Solid combustible materials (wood / paper / clothing), combustible gases (gas / natural gas), combustible liquids (gasoline / formaldehyde), electrically charged substances (wire break aging).Wide Application: Used in multiple locations such as homes, warehouses, hotels, shopping malls, companies, hospitals, restaurants, etc.Specifications:Name: Tuya Zigbee Smoke Alert DetectorMaterial: PC+ABSBattery: 1 * 9V lithium battery (not included)Working temperature: -10 to 55Working humidity: 95%RHAlarm sound: 80dBItem size: 106 * 106 * 41.5mm / 4.17 * 4.17 * 1.63inPackage size: 110 * 110 * 80mm / 4.33 * 4.33 * 3.15inPackage weight: 220g / 7.76ouncePacking List:1 * Tuya Zigbee Smoke Alert Detector