WiFi temperature and humidity: [WiFi+BT dual-mode]: Connect to the network faster. Connecting to the network is twice as fast as WiFi only [High temperature and low temperature alarm]: Once the set temperature value is exceeded, the phone will prompt an alarm [High humidity low humidity alarm]: Once the set humidity value is exceeded, the phone will prompt an alarm [Real time monitoring]: Battery powered AAA 1.5V * 2 (excluding batteries), low power consumption, according to system default settings, can be used for approximately 1 year. The data update frequency is 1-120 minutes, and the update frequency can be selected as needed. The smaller the value, the shorter the actual usage time of the battery. Product parameters: Size: 70 * 20 * 25mm Outer box size: 90.5 * 39 * 36.5mm, single product weight: 24g Material: ABS Power supply: AAA 1.5V (No. 7 battery) * 2 (excluding battery) Wi Fi support: 2.4G IEEE 802.11 b/g/n Temperature measurement range: -10 ℃55 ℃ Temperature accuracy: ± 0.3 Humidity measurement range: 10%99% RH Humidity accuracy: ± 3% RH For ZigBee temperature and humidity: 1. FOR Graffiti ZigBee 3.0 2. [High temperature and low temperature alarm]: Once the set temperature value is exceeded, the phone will prompt an alarm 3. [High humidity low humidity alarm]: Once the set humidity value is exceeded, the phone will prompt an alarm 4. [Real time monitoring]: Battery powered AAA 1.5V * 2 (excluding batteries), low power consumption, according to system default settings, can be used for approximately 1 year. The data update frequency is 1-120 minutes, and the update frequency can be selected as needed. The smaller the value, the shorter the actual usage time of the battery. Product parameters: Size: 70 * 20 * 25mm Single product weight: 24g Outer box size: 90.5 * 39 * 36.5mm Material: ABS Power supply: AAA 1.5V * 2 (excluding battery) Wi Fi support: 2.4G IEEE 802.11 b/g/n Temperature measurement range: -10 ℃55 ℃ Temperature accuracy: ± 0.3 Humidity measurement range: 10%99% RH Humidity accuracy: ± 3% RH Packaging includes 1 * Sensor 【 Alarm temperature or humidity can be set】: If temperature or humidity exceeds set range, value will be displayed in red and an alarm will be issued on device. 【Sharing Simply share sensor to your family on APP and they can directly check this temperature and humidity on their mobile phones without pairing 【Simple Design & Easy Installation】Widely in various places and easily stick to wall with sticker for simple installation,light and compact. 【Smart Technology】Designed with low voltage monitoring reminder function in App for real-time power supply for your sensor.Battery powered with long battery life.(battery not include) 【Wide Application room temperature and humidity monitor adopts compact design and lightweight, can be placed anywhere in room, small enough to fit in potted plants, cigar humidors, reptile vivariums, and other small rooms.