B-ALARM is a GSM device designed for remote management of alarms in homes, buildings, plants, production machines through simple commands sent with SMS messages. With any smartphone it is possible to control the boiler on and off, activate a contact, etc. The device is equipped with a GSM module inside it that behaves like any other telephone terminal on a cellular network. The unit allows to operate with commands at zero cost through ringing as well as with fast commands with numerical code and timed. It also has 1 digital input and 1 SPDT output relay with a capacity of 3 A / 250 Vac. B-ALARM can count on a 5-user command book (1 of which is an administrator) and a SIM phone book extended to up to 250 users (commands by ringing). Online configuration is ensured by the EASY SETUP plug&play software and partially remotely via SMS.