ywu Posted May 22 Share Posted May 22 In preparation for my renovation, I detached the garage door contact sensor and the magnet, which as expected, caused a tamper alarm. The sensor has been put back together and my hope was, I'd bind the two together until the work is done in that area but what I'm finding is the control panel shows a tamper alert when the magnet is brought into proximity with the sensor. No fault is there when they are separated. What might be the issue? Here's what the sensor looks like inside. Quote Link to comment Share on other sites More sharing options...
james.wilson Posted May 22 Share Posted May 22 id say your puttin gthe magnet to the wrong side of the contact and you have a grade 3 door contact 2 Quote securitywarehouse Security Supplies from Security Warehouse Trade Members please contact us for your TSI vetted trade discount. Link to comment Share on other sites More sharing options...
ywu Posted May 22 Author Share Posted May 22 Is there an issue with it being Grade 3? I have tested it on two sides of the sensor but it's the same issue. Perhaps it matters what the poles of the magnets are used? I haven't tried that yet. Quote Link to comment Share on other sites More sharing options...
sixwheeledbeast Posted May 22 Share Posted May 22 The interference reed switch will make it tamper. Unit needs closing up and the magnet part the correct way around on the correct side of the reed part. You'll have fun re-installing it too if you plan to do that. Quote Link to comment Share on other sites More sharing options...
james.wilson Posted May 22 Share Posted May 22 14 minutes ago, ywu said: Is there an issue with it being Grade 3? I doubt if your messing with it yourself grade 3 equipment is required. But a grade 3 device is a high security one designed to detect if someone is trying to defeat it with a rouge magnet or one in the wrong location. There will be arrown on the case indicating where they need to line up and it wont have anything like the same tolerance of a grade 2 contact. Id also tidy up your wires there is too much exposed Quote securitywarehouse Security Supplies from Security Warehouse Trade Members please contact us for your TSI vetted trade discount. Link to comment Share on other sites More sharing options...
ywu Posted May 22 Author Share Posted May 22 (edited) There was a gap of around 0.75 cm between the sensor and the magnet before. Maybe i'm putting them too close together and they need that air gap? I've now tried multiple orientations and it still triggers. Edited May 22 by ywu Quote Link to comment Share on other sites More sharing options...
ywu Posted May 22 Author Share Posted May 22 (edited) I think that's resolved it. I've got an airgap of about an inch between sensor and magnet and it's enough for the alarm to say it's "secure" that the door is "closed". Edited May 22 by ywu Quote Link to comment Share on other sites More sharing options...
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