SwitchBot 4-Pack Smart Hygrometer Thermometer, Bluetooth Wireless Room Temperature Humidity Sensor with App Alerts

Accuracy - With a built-in Swiss-made sensor, SwitchBot Meter monitors the environment reliably every 4 seconds. The clear and high-resolution LED screen of your indoor thermometer and hygrometer in one displays the large digits and battery volume, making them easy to read. Data Record - SwitchBot Meter keeps data of the recent 36 days. With SwitchBot Hub Mini (only support 2.4GHz Wi-Fi), unlimited data could be saved on the SwitchBot cloud. You could clear all the data or export them in a .csv file in SwitchBot App. App Alert - If it falls out of the range you set in SwitchBot App, you’ll receive a notification instantly when you are in Bluetooth distance (120m/394ft, unobstructed); with the SwitchBot Hub Mini (sold separately), SwitchBot Meter can be connected to WIFI, and you’ll receive a notification from anywhere, aware of the changes in your cellar, basement, etc. via your phone. Integration - With SwitchBot Hub (sold separately), the Meter works with Amazon Alexa, Google Assistant, Siri, IFTTT and other SwitchBot products for home automation. For example, you can set a Scene in SwitchBot App to turn your humidifier on when the humidity is below 45%RH and AC on when the temperature is above 25℃/77℉. Easy Installation - Add it to SwitchBot App in seconds, and tear off the screen protector, your Meter is ready to go. With the magnetic back, 3M metal plate and stand, you can place it anywhere, a magnetic surface, a wall, or a flat surface. ℃/℉ can be easily switched from SwitchBot Meter itself. In the Switchbot app, you can also calibrate the temperature reading. The batteries included have a life of 1 year.