The Elitech Wireless Digital Data Logger Remote Real-Time Temperature Monitor Cloud Data Storage SMS/Email/APP/Web Alarm, WiFi Dual External Temp Probe, RCW-800W-TDE (-40~176℉) with FREE Cloud Service is a real-time temperature and humidity monitoring device via Wi-Fi/4G, suitable for applications in cold storage, healthcare, food, vaccines, and other industries requiring environmental control. The device can connect to the Elitech Cloud platform, allowing for remote data monitoring via a mobile app or web browser.