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Martin Pertwee just disappeared. I had a contract with him to service our alarm every year for about £200. He came here for about 10 years and then just stopped coming, around 4 years ago. I'd really like to just pay someone to swap the panel. Can you do it, or recommend someone, please? The...

Thanks again. I could do with a manual. I suppose I could paint the metal casing, but it's located in the downstairs WC room, so all our visitors see it on the wall. I just want something a bit more appealing, after all this time. I've noticed that you're in Sheffield. I'm in Goole, about 25...

Out of curiosity, do you have an Engineer manual for the Scantronic 9448, please? After 15 years I'd like to change the unit for something more modern. It has been totally reliable, until I knocked it, but the steel case looks ancient compared to modern plastic ones, and I want to see what would...

Absolutely remarkable. What a credit you are, and what a superb Forum this is. I tried lengthening the spring, but the metal seems very soft after 15 years. I found a fancy plastic tyre valve cap that is just right to extend the overall length of the spring. I pushed it into the spring, refitted...

I have a 15 year old Scantronic alarm. I was cleaning and knocked the control box, resulting in the alarm going off. It wouldn't reset and I had to wait 10 minutes for the external siren to stop. I removed the control box lid, expecting the alarm to set off again. It didn't. I noticed the...