【Real-Time Temperature and Humidity Monitoring】Instantly view accurate temperature and humidity data, ensuring optimal environmental conditions. 【Customizable Alarm Settings】Set upper and lower limits for temperature and humidity, receiving alerts when conditions exceed your specified range. 【Smart Home Integration】Compatible with Alexa and Google Assistant for seamless integration into your smart home ecosystem. 【Mobile App Notifications】Receive instant push notifications on your smartphone via the Tuya app when alarms are triggered. 【Historical Data Access】Easily review past temperature and humidity trends with the built-in history query function. 【Loud Alarm】Features a high-volume alarm (>55dB at 1 meter) to ensure alerts are heard clearly. Specifications: USB input: DC5V Battery input: DC3V LR03*2 (not included) Quiescent current: ≤75uA Alarm current: ≤135mA Low power undervoltage: ≤2.4V WiFi: 2.4GHz, 802.11 b/g/n Detection temperature: -10℃-60℃ Detection humidity: 0-100%RH Alarm sound pressure: ≤55db/1m Installation method: wall-mounted/desktop placement Working temperature: -10℃-60℃ Working humidity: ≤90%RH