Review on MOCREO WiFi Thermometer Hygrometer: Remote App, Email Alarm & Data History - Wireless Indoor Monitor for Freezer Alarm, Home Greenhouse, Garage, Wine Cellar - 3 Pack by Brad Jeffress

I almost lost food in the freezer last year. I didn't close the door all the way. Luckily my wife found it in the garage the next day. I decided that I had too much money for food and that I had better save it. I have a Wi-Fi mesh network in my house and I added a hub and a sensor. Very easy to set up and use. I keep my freezer on the low end of these gauges, but it works fine. It can send an alarm when the temperature is out of range. The sensors also log data through the app, maybe more features than I need but it's a very good product. Maybe they could add a lower temperature option and an outdoor sensor.