The Mobeye CM-Guard CM4000 is a universal 4G LTE-M/2G alarm notification device for monitoring technical installations. In the event of an alarm situation, the built-in communication module will send a message to the preset telephone numbers. It has two digital inputs that can easily be configured as NC (normally closed) or NO (normally open). Any potential-free contact can be used as a sensor. Under normal use, the CM-Guard will operate on batteries only for one year or with an external power supply unit and batteries as backup. If the external power supply is used, the module will also send power failure messages. https://elecena.pl/product/19068775/10385-gsm-module 2021-07-14 https://elecena.pl/product/19068775/10385-gsm-module 2025-12-08