Features:  1.Tuya Zi-Bee T&H&Siren 3 IN 1 Sensor: Detecting temperature and humidity in the environment in time. Siren alarm louder than 90DB.  2.APP Real-time Temperature and Humidity Report: With the gateway and cloud platform docking, perception of temperature and humidity changes and real-time report to the users phone.  3.Alarm Notifications: Smart phone will get instant notifications when siren alarm triggered and check the log on APP. Widely used in home, kitchen,office, etc.  4.Smart Scenarios: It can also be combined with other smart WIFI products based on Tuya to design and implement smart application scenarios.  5.Ultra quick response, anti-interference ability, ultra-low power consumption and cost-effective. Supporting 5V 1A USB port power.    Specifications:  Type: T&H&Siren 3 IN 1 Sensor;  Standby current: 61uA-180uA;  USB port: 5V/1A;  Sound intensity: 90db;  Detection temperature: -10℃ ~ 80℃;  Detection humidity: 0% ~ 100%;  Wireless frequency: 2. 4GHZ;  Communication protocol: Zi-bee 3.0;  Wireless standard: Z-bee IEEE 802.15.4;  Wireless range: 40M;  Item Size: 68*68*33mm;    Description:  On/off: the indicator light flashes/the indicator light is off;  Reset: long press the reset button for 5-7 seconds;  Sound types: 18 kinds;  Alarm duration can be set: 0-1790 seconds;  Detection temperature: -10——80℃;  Detection humidity: 1%-100%;    Package Included:  1 * Temperature & Humidity&Siren 3 IN 1 Sensor;  1 * Set of Stickers & Mounting Screws;  1 * USB Cable