Specifications: Tuya ZigBee: Alarm 2 IN 1 sensor: Timely detection of conditions in the environment. Siren alarm sound is 100DB.; Alarm Notification: Smartphone will get instant notification when the alarm is triggered and view the log on the APP. Widely used , kitchen, office, etc. Smart Scenario: It can also be combined with other Tuya-based smart WIFI products to design and implement smart application scenarios. Ultra-fast response, strong anti-interference capability, ultra-low power consumption and high cost performance. Support 5V 1A USB port power supply with rechargeable backup battery can last 24 hours even if the power is off Has 8 kinds of alarm sound, 5 kinds of alarm (door magnetic abnormal, water level abnormal, temperature and humidity abnormal, smoke abnormal, human intrusion abnormal) Gateway Tuya's ZigBee smart wireless gateway supports 2.4G WIFI network direct connection, and the device communication network is ZigBee HA 3.0; Product function: Doctrine is used with ZigBee series products of the graffiti solution, including switches, sockets, sensors, door locks, electric curtains, universal infrared remote controls, etc. Please note that any ZigBee product needs to be used with a gateway, and our company's model is the lightest mini and easy to install. The currently accessible devices support about 30-50, which is enough for small houses or apartment buildings. The biggest advantage of the product is that it does not need to be connected to cable, it is plug and play, and it can be placed in any place with a socket to be powered on and used for networking. Product name: Zigbee Sound and light alarm Product size :72 x 72 x 31mm; Wireless Protocol :2.4G Zigbee IEEE 802.15.4 Battery capacity :400MA; Charging voltage:5V-1A Charging duration:2H; Power off standby:24H Working temperature:-10-55; Working humidity:0%-95%RH(Non-condensing) 1.A must for all ZigBee products:This is a hub that connects to a of ZigBee smart products and is ,as well as a control center for smart homes,which plays an irreplaceable role for all ZigBee products.2.Wide Compatibility:ZigBee 3.0 smart products are well compatible with the ZigBee gateway hub,allowing you to customize your systems depending on your individual needs and security requirements,which allows to control your all house appliances in one App. 3.App Smart and Remote Control:Adding devices,device reset, control and group control to meet the needs of smart applications,are all supported by the hub.Simply use your smart phone to control remote security kit system connected to the hub anytime,anywhere. 4.Stable and Reliable Wireless Networking:WiFi signal covers a wide range of areas that is stable and reliable enough for normal work of any connected devices to the hub. 5.Easy to Fit:The smart gateway hub is designed with absolutely no wiring required and an extremely quick simple WiFi setup,no professional technical skills needed. Color: As Shown Material: plastic Package Contents: 1 x Sensor 1 x Data cable 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 a little different from the real thing. The measurement allowed error is +/- 1-3cm.