Add another bluetooth monitor to your system. This monitor requires an external 12-24v power supply and is designed to be installed in vehicles or machines. The power supply cable is sold separately.
MONITOR - EXTERNAL POWER - GST excl
An external power controller requires a 12v power supply. This can include a vehicle/machine, a larger battery, or a solar battery system like the AJ25A from https://www.ajproductions.co.nz/products/trail-security-cameras/AJ25A-Solar-Panel-Kit. It can perform a number of different functions depending on its settings. The current list of functions include:
Monitor - Relays messages between other controllers and the sensorView phone app.
Gate - Single arm barrier gate controller
Master - Dual arm barrier gate that requires a slave controller
Slave - Dual arm barrier gate that requires a master controller
Repeater - Repeats messages between barrier controllers and a monitor controller to extend the distance of operation