The opal heads have a lux adjust setting inside the detector carefully remove the cover as they go brittle in the sun, you can buy replacement covers around £5 , try cleaning the covers first and adjusting the lux setting on the faulty head.
So I definitely have the opal pir, but only one dial and it is set in the same position as the others. How can I tell if this is for range or lux? The gjd website does not seem to have any support documentation for legacy PIR's.
At this stage looks like I will need a replacement PIR
If you need to find a tradesperson to get your job done, please try our local search below,
or if you are doing it yourself you can find suppliers local to you.
Select the supplier or trade you require, enter your location to begin your search.
Please select a service and enter a location to continue...
Are you a trade or supplier? You can create your listing free at DIYnot Local