Feature:1. [Detection Range] The WiFi temperature humidity sensor can detect temperatures from -10 to 55 and humidity levels from 0 to 99 percent RH.2. [Adjustable Temperature Modes] With multiple temperature modes, this smart sensor is suitable for a variety of scenarios, catering to different needs and settings.3. [Enhanced Security] This temperature humidity sensor features a tamper proof design to provide added safety and peace of mind.4. [Low Voltage Prompt] Equipped with a low voltage monitoring prompt function, the sensor notifies users when battery power is running low.5. [Long Battery Life] With low power consumption, this WiFi temperature humidity sensor ensures long battery life, allowing for 2500 triggers (battery not included).Specification:Item Type: WiFi Temperature Humidity SensorMaterial: ABSBattery Type: AAA x 2 (not included)Battery Life: 2500 triggers (1 trigger per day, 3 triggers per day, 3 triggers 2 triggers per day)Standby Time: 2 yearsSensing Distance: 6 metersViewing Angle: 110 degreesStatic Current: 75uALow Voltage and Under Voltage: 2.2VWireless: 802.11b g nTemperature Detection: -10 to 55Humidity Detection: 0-99 percent RHRemind Sound Pressure: 55dBInstallation Method: Wall mountedOperating Temperature: -10 to 60Operating Humidity: Up to 90 percent RH.Package List:1 x Main Unit1 x User Manual1 x Sticker2 x Screws1 x Pin2 x Accessories