Pandora have been working hard to provide a battery back up wireless siren which will allow the system to become Thatcham approved in the UK. We have been testing the PS-331BT siren for many months on our own work vehicle and we can say it works fantastic. The idea behind the BT siren is it means you don’t have to run or drill holes within the vehicles engine bay to run siren wires. You simply link up the live and earth within the engine bay and the alarm does the rest completely wireless.
With the inbuilt battery you can be assured if the siren is attacked the battery back up will kick in and it will allow the siren to keep sounding. The siren is also very flat meaning it can be mounted easily within most modern engine bays.
The siren is set to be released shortly. ( December 2019 to early 2020. )