[Remote Monitoring] Observe real-time smoke development through the mobile app. Make your home smarter, no matter where you are. [Highly Sensitive Smoke Detection] When a fire breaks out, the sensor will sensitively detect smoke and send an alarm signal and notifications to your smartphone to protect people and property. [85dB Loud Sound] When triggered, the red LED flashes with a loud alarm sound, louder than 85dB. Features test and silence button. [Advanced Design & Super Quality] Intelligent smoke algorithm, high sensitivity, no false alarms, strong anti-interference. [Wide Application] Easy to install and clean. Widely used in homes, schools, shops, offices, villas, residential areas where fire prevention alarms are needed. Specifications: Power supply: battery (not included) Standby current: 15uA Alarm current: 50mA Alarm indication: Red LED flashes Sound level: 85dB/M Detection area: 20 square meters Alarm output: WIFI Wireless type: 2.4 GHz Protocol: IEEE 802.11b/g APP: SmartLife/Tuya Operating temperature: -10C ~+50C Operating humidity: 95% RH Material: plastic Color: White Package Contents: 1 x Wifi Smoke Detector Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to differ slightly from the real thing. The allowed measurement error is +/- 1-3cm.