NTT Docomo has launched IoT-driven service for industrial refrigerators and freezers in the United States.
Customers can use smartphones or PCs to monitor the temperature and humidity of their equipment. They will receive alerts in the event of any abnormality. Users will  receive monthly reports on temperature and humidity trends. Customers can change settings based on such reports.

The price of the IOT service is from $99 per month in the United States, NTT Docomo said in a statement.

NTT Docomo has developed the service in partnership with myDevices, an IoT solutions company based in Los Angeles, California. myDevices provides IoT technology based on LoRa, a wireless data communication technology.

The system uses the LoRaWAN specification which enables sensors to run for more than five years without replacement.