Looking for fire alarm sensor caps

[ffutures]

Weird question - can anyone identify the manufacturer of this fire alarm sensor?



We have rather a lot of them in our labs since they were rebuilt, and we need to cover them with an appropriate red cap when we do anything that might trigger the alarms, which happens all too often. We have three or four caps, but there are two sites with ten labs plus prep rooms and store rooms, and a corridor outside four of the labs with seven of these detectors - the ceiling is split into several areas by beams crossing the corridor, and they have a sensor in each area. We could really use a lot more. The caps look like this:



Unfortunately I have no idea who made these - the number shown is its number on the alarm network, not a model number or anything, and I can't see a maker's name anywhere.

Anyone got any thoughts?

Later - manufacturer tentatively identified, I've contacted them re spares and hope they'll reply sooner or later. Thanks, everyone.

Comments

[resonant.livejournal.com]

Those look like the covers used to keep dust out during construction. This might fit:

http://www.tridentfire.co.uk/store/s-quad-sensor-dust-cover-pack-of-50.html#product_tabs_description

Failing that, you could buy some DEVO hats and stick them on with double-sided tape.

http://www.swag-inc.com/shop/devo/devo-energy-dome-red.html

[ffutures.livejournal.com]

I sent a query to trident - even if they don't sell the sensor they may know who makes them. Many thanks for the link!

[ffutures.livejournal.com]

They've identified them as made by a company called Apollo, and I've just emailed them with the same query. We'll see how it goes.

[inamac.livejournal.com]

I've tried a google image search on 'commercial heat detectors' and smoke detectors - but it looks as though this particular type has been discontinued. You might find something the same size and see whether it has a protective cap that would fit.

[ffutures.livejournal.com]

That's what I'm trying to do. I really don't know why they thought putting them in the labs was a good idea!

[bard2003.livejournal.com]

may be you can ask the company that put them in there? we had same problem, but our solution was simple - full renovation of system.

[ffutures.livejournal.com]

I hate the bastards so much that I would rather do almost anything else. Four years since they renovated the labs and we're still finding problems!