The magnetic contact sensor can be triggered both to open and close doors or windows. Each time an alarm is triggered , an alarm packet is sent to the LoRaWAN ® network . The sensors are available in a modern plastic case in four colors: black, brown, white and gray. The sensor consists of two parts: the main part includes a board, a battery, indicators and Hall sensors, and the magnetic part contains only a magnet. The sensor can be used for protection of premises, buildings and structures, as well as in Smart Home systems built on LoRaWAN ® technology .