A prepaid SIM card is an optional accessory for UxxxxM devices. It offers a long-term prepaid data connection to the mobile network, which allows sending values ​​from the device, for example, to the COMET Cloud.

• The life of the SIM card is 2.5 years with a set sending interval of 5 minutes, 5 years with a sending interval of 10 minutes (500 MB)
• Coverage includes more than 100 countries worldwide

The SIM card only supports data transfers, it does not support sending SMS messages.