Inkbird Reptiles Thermometer Hygrometer Data Logger IBS-TH2 308 WiFi Thermostat
WiFi INKBIRD APP (IOS 11.0 + or Android 5.0+). ITC-308 (WiFi) Manual. It can be used as overtemperature /. Alarm and data history viewable on the app. Battery is easy to replace on the back of the unit (2x AAA).