No Plan Cellular Temperature, Humidity, and Power Sensor

No Wifi Needed! Just plug our cellular temperature, humidity, and power sensor in and immediately start getting readings via our online portal. Alerts you can customize are delivered to you via text and email when measurements fall outside your desired ranges or there is a power outage. This device comes with a cellular plan good for 5 years! After that you can renew at $50 a year.

Specs:

• 5v
• Temperature sensor -5 to 150 °F(accuracy +-1 °) 
• Power sensor
• Humidity sensor(accuracy +- 3%)
• Backup power supply good for 36+ hours(3 AA batteries not included)