RuuviTag 4in1 Bluetooth Sensor

The RuuviTag 4 in 1 is a wireless open-source Bluetooth sensor used to measure air temperature, air pressure, humidity, and motion.

 Ruuvi devices can be connected via Bluetooth to a Victron Cerbo GX allowing you to initiate a number of processes based on environmental conditions; for example using relay 2 on a Cerbo to trigger an alarm, or turn on a fan should a temperature get too high.

Victrons VRM software can be used to view real time sensor data, and can even send emails notifying of undesirable environmental changes once configured.