Meet the Dot Thermo External: another iPhone compatible thermometer that connects to WiFi to alert you when temperature exceeds or falls below your preset limits. Its measurement intervals, minimum/maximum allowed temperature thresholds, and other settings can all be customized.
The device can be set up in a couple of minutes to deliver 24/7 constant temperature monitoring. It has a temperature detection range of -65 to 255F. It sends emails and text messages when conditions change abnormally.[where to get it]