kai Posted September 16, 2017 Share Posted September 16, 2017 Seems a bit dead in here but I'll give this a shot. I'm looking for a small in-ceiling (not ceiling mounted) movement sensor. I don't want one that operates off high voltage e.g. ones that operate lights. Ideally it would be an alarm type sensor but as long as it operates off 12V and can trigger an output (dry contact) then I'm happy. I've been looking quite hard for some and almost any that come are either massive, ugly or cost an absolute bomb. Does anyone have any ideas? It doesn't have to be super fancy, I just want it to be able to detect basic movement. Some examples I've found are: CP Electronics (~£65) Danlers (~£50) BEG Luxomat (~£65) I've yet to come across any alarm company inceiling sensors - they all seem to be surface mounted but they are all considerably cheaper (e.g. Texecom AM360 QD ~£30). Is there any reason for this? Many thanks in advance. Quote Link to comment Share on other sites More sharing options...
norman Posted September 16, 2017 Share Posted September 16, 2017 What's the application for? 1 Quote Nothing is foolproof to a sufficiently talented fool. Link to comment Share on other sites More sharing options...
aissecur Posted September 16, 2017 Share Posted September 16, 2017 I would suspect the sensors you mention (CP Electronics / Danlers etc) all have photocell and time adjustment on detection with NC / NO contacts where for instance the Texecom AM360 QD has a NC contact (No time adjustment on detection unless you start integrating a timer into your final circuit) 1 Quote Link to comment Share on other sites More sharing options...
kai Posted September 16, 2017 Author Share Posted September 16, 2017 Hi All, Thanks for the replies so far. The application is for simply detecting movement in a room/area. I don't require any time adjustment. All I need it to do is to have a signal (NC/NO) on detection of said movement. I will have an external control system in place to handle everything else after the event. Quote Link to comment Share on other sites More sharing options...
norman Posted September 16, 2017 Share Posted September 16, 2017 How many do you need What environment are they being located in What are they connecting to Why not surface mount 1 Quote Nothing is foolproof to a sufficiently talented fool. Link to comment Share on other sites More sharing options...
MrHappy Posted September 17, 2017 Share Posted September 17, 2017 will ebay chinky tat suit your needs ? http://www.ebay.co.uk/itm/12V-360-PIR-Infrared-Motion-Movement-Sensor-Detector-Switch-Mounted-Ceiling-/352165250609?hash=item51feaf4631:g:KeIAAOSwgKpZulPM 2 Quote Mr Veritas God Link to comment Share on other sites More sharing options...
PeterJames Posted September 17, 2017 Share Posted September 17, 2017 1 hour ago, MrHappy said: will ebay chinky tat suit your needs ? http://www.ebay.co.uk/itm/12V-360-PIR-Infrared-Motion-Movement-Sensor-Detector-Switch-Mounted-Ceiling-/352165250609?hash=item51feaf4631:g:KeIAAOSwgKpZulPM They look quite good, pity theyre non compliant I would use those Quote Link to comment Share on other sites More sharing options...
norman Posted September 17, 2017 Share Posted September 17, 2017 Grade them yourself in house. Quote Nothing is foolproof to a sufficiently talented fool. Link to comment Share on other sites More sharing options...
al-yeti Posted September 17, 2017 Share Posted September 17, 2017 1 hour ago, norman said: Grade them yourself in house. Like the alarm manufacturers? Quote Link to comment Share on other sites More sharing options...
datadiffusion Posted September 17, 2017 Share Posted September 17, 2017 On 16/09/2017 at 10:40, kai said: Seems a bit dead in here but I'll give this a shot. Despite that you've got a few replies. Steinel do one that operates off 240V but has a truly isolated, universal C/O contact, designed for integration into non-mains applications. It comes flush and they clearly use a high quality downlight casing which makes preparing the hole easy (standard 70mm). It's also tiltable and comes with a mask. I am not sure if you are dead against 240v for a reason or just didn't think anyone did a 240V sensor with isolated output. Quote So, I've decided to take my work back underground.... to stop it falling into the wrong hands Link to comment Share on other sites More sharing options...
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