Am I being thick here but if it's set to double knock someone opening the door wouldn't trigger the alarm would they? I thought that double knock meant the sensor had to be tripped twice - so on a door contact you would need to open the door then close it and open it again for it to trigger????
the premier 1 continuous activation for the double knock time or 2 activations within that time frame.
so whilst it may not give false alarms, it may not register you entering the building either if the above criteria isn't met its not a good idea long term short term it may stop the false alarms.
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