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Thanks so much guys. You've given me just what I wanted. I will work through your designs and I can understand much of what you suggest. You are right about the relay. I got it on Amazon. I bought the toggle version but its easily changed to momentary (which I don't think I want, latched or a...

Thanks but I want to use 2 LEDs (green and red) to indicate whether the PIR is potentially armed and fix these on a project box on the outside of the garage. So I need to wire in these two LEDs plus resistors each in series to the corresponding NO and NC outputs from one of the relays. So I...

Hi Recently my garage had to be rebuilt and the switch operated by a key that was fitted outside the garage has been removed. This enabled me to switch off the PIR alarm sensor in the garage as I approached in my car without going into the house and using the alarm panel to disarm the system...

I think that British Gas charge £199 for their Hive heating system, installed. For a "self" install by your own engineer they reduce the price by £40. I suppose their prices are roughly inline with similar Wifwi systems. The system is "free" for new British Gas dual fuel customers who sign up...

Hello The CH/HW system that I have is a fully pumped system with mid-position diverter valve, Sundial Y-plan. The present old controller is an old ACL Lifestyle (LS722) controller in the kitchen, which was one of the first to enable different time programming on different days of the week but...