Features: 1.Smoke sensing and temperature and humidity 2-in-1: Not only can smoke be detected, but temperature and humidity can also be measured. 2.Temperature and humidity curve: Record the temperature and humidity changes on the APP and present them to you in a graphical format. More intuitive to let you know about recent data changes. 3.80dB (A) alarm sound: When the temperature reaches 60 degrees, the smoke reaches a certain value. Triggering an alarm, allowing people to respond in a timely manner and handle it quickly. 4.High temperature alarm push: Automatic alarm above 60 degrees Celsius, and the phone will prompt the alarm. 5.Mobile app alarm push: helps you get rid of hidden dangers and economic losses. 6.Smoke detectors should promptly remind of dangerous smoke concentrations: to avoid potential hazards and economic losses. 7.WIFI+Bluetooth two connection methods: faster network connection. Connecting to the network is twice faster than using only WiFi 8.Usage scenario: It can be widely used in places that require fire alarm monitoring, such as homes, lounges, coffee shops, dance halls, etc. (This sensor cannot detect gas/heat.) Parameters: Material: ABS Wireless network: 802.11 b/g/n Input voltage: 2 AAA batteries (excluding batteries) Detection range: 20 square meters Static current: ≤ 10uA Installation method: ceiling mounted Alarm current: ≤ 120mA Working temperature: -10 ° C~50 Humidity measurement range: 0%~99% RH Low voltage prompt: ≤ 2.4V Working humidity: ≤ 95% Alarm sound level: 80dB/1m Product size: 90 * 90 * 40mm Package include: Temperature and humidity sensor * 1 Instructions * 1 Screw pack * 1 Paper box packaging