228WT-W 2-in-1 WiFi Smoke Detector with Temperature & Humidity Sensor Support Sound Alarm/Voice Control •Smoke Sensing and Temperature and Humidity 2 in 1: Not only can you detect smoke,but also measure temperature and humidity •Temperature and humidity curve: record the temperature and humidity changes on the APP and present it to you graphically. More intuitively let you know the recent data changes •80dB(A)* Alarm sound: when the temperature reaches 60 degrees and the smoke reaches a certain value. The alarm is triggered to let people react in time and deal with it quickly •High-temperature alarm push: higher than 60 degrees automatically alarm,the cell phone will prompt the alarm •Mobile APP alarm push: let you get rid of hidden danger and economic loss •Smoke detector reminds dangerous smoke concentration in time: get rid of potential danger and economic loss •Voice control: work with Amazon Echo,Google Home,Tmall Genie,Xiaoxia •Intelligent linkage: work with other Tuya smart door locks. Monitoring device use,timely rescue,reducing the time to open the door •Low battery reminder: When the power is less than 20 percent will automatically push a message to remind you,of a convenient and timely replacement of the battery •Sharing function: share with family members for common control •Group function: you can turn off or turn on the devices in the group together,more convenient •Recommended installation location: the alarm can be installed on the ceiling or tilted installation; if you need to install it on a pitched or diamond-shaped roof,the tilt angle should not be greater than 45 °,and the distance should be 50cm •Flat ceiling installation: the best place to install the smoke sensor is in the center of the ceiling. This is because smoke,heat,and combustibles rising to the ceiling spread horizontally. Keep a distance of at least 30 centimeters from lights or other decorations •Sloped Ceiling Installation: If the ceiling is sloped,install the smoke sensor at a horizontal distance of 90 cm from the ceiling pendant •Usage Scenario: It can be widely used in homes,restrooms,cafes,dance halls,and other places where fire alarm monitoring is required. (This sensor cannot detect gas/heat.) •WIFI+Bluetooth 2 types of connection: faster connection to the network. Connecting to the network is 2 times faster than using WiFi only •Specifications: •Material: ABS •Wireless Network: 802.11 b/g/n •Input voltage: AAA battery x 2 (battery not included) •Detection range: 20㎡ •Static current: ≤10uA •Installation: Ceiling type •Alarm current: ≤120mA •Operating temperature: -10 ℃~ 50℃ •Low voltage: ≤2.4V •Operating humidity: ≤95% •Alarm sound level: 80dB/1m •Product size: 90 x 90 x 40mm Package included: •1 x WiFi Smoke Detector •1 x Screws Pack •1 x English and Chinese Manual •Other items not included