The ROLP sounder is an affordable wall mounting sounder which is suitable for audible signalling within open areas or corridors and passages. The sounder is designed for use within fire alarm systems, intruder alarm systems and industrial signalling systems. It is able to produce 32 tones via the coding switch on the rear of the unit.
 
A second tone can be activated remotely by using the third terminal. A volume control adjustment is also provided. Connection is via a screw terminal connector block for ease of termination of cables. Each connection has a terminal for looping in and out. The sounder is fixed to a location using a bespoke shallow clip on lockable base