Module compacts for safety of the batteries in the communications which:

- Conforms to the legislation in force on the obligation of the GMDSS
- The voltage drop of the battery of service Detects automatically.
- Automatic Change of the battery in battery mode of emergency help.
- Luminous Indicator of the state of load of the battery of services and the emergency.
- Digital display of the tension and the amperage of the emergency battery.
- Sound and luminous Alarm when the change of bldg. of the services has emergency bldg. produces.
- Stop sound alarm and reactivation all 59 min.
- Manual Selector of the automatic mode, emergency mode and the mode of services.