Features: * Accurate: Built-in temperature and humidity sensors. Temperature sensor -20 deg; c to 60 deg; ci humidity sensor 0% RH to RH. Temperature is accurate to 1 deg; c, and humidity up to 5% relative humidity. Updates every two minutes for greater accuracy. * Monitoring: The digital humidity thermometer can be easily monitored remotely from the smart Life app. When the environment changes, you can create smart links. For example, when the room temperature exceeds 35 deg; c. The air conditioner turns on automatically or if the humidity drops below 20% RH, the humidifier sprays. *Enable automation: You can request the greenhouse temperature and humidity using the smart speaker assistant. For example "what's your temperature?" *Free data storage and export: The internal hygrometer supports data export and data storage in the app for one year. Logs can be downloaded quickly and easily via your smartphone, then exported as a CSV file via email.* Small and Portable Design: Our Smart Humidity Sensor Thermometer measures 70x24x19mm, saving space and easy to carry. Specifications: * Product Name: Temperature and Humidity Sensor * Battery Type: 2 * AAA (Not Included) * Product Parameter: DC3V LRO3 * Quiescent current: le;10uA * Alarm current: 15mA * Low voltage and undervoltage: 2.6V * Wireless type: WiFi (2. 4G) * Detection temperature: -20 ~ +60 * Detection humidity: 0- RH * Working temperature :-20 ~ +60 * Operating humidity: maximum 95% RH * Measurement accuracy: 1 , 5% RH * Alarm mode: APP notification push * Size: 70*24*19mm Package content: 4 * thermo-hygrometer Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data.