The Rego1 has volt free contacts to connect external devices such as an alarm or beacon. When the high level alarm is activated, the relay sends a signal continuously.
The volt free relay is designed to accept devices with a maximum load of 0.5A and voltage up to 30V. If external devices fall outside these parameters, the device must be powered by an external power supply.
You can use the Rego1 to power external devices with a maximum voltage of 6-7V.
Typically you will need to link out the IN & +6V terminals as pictured below. The device will then have to be wired into NO & GND.