Eddie Vincent Posted February 17, 2021 Share Posted February 17, 2021 Can anyone explain what the small box on ceiling just in front of rear roof light? Could it be something to do with alarm system? Link to comment Share on other sites More sharing options...
Charles Posted February 17, 2021 Share Posted February 17, 2021 Sounds like your van is similar to ours (elddis accordo 105) The dealer specials have the autowatch alarm and it's a movement sensor. That reminds me, must check the batteries in ours. They last 3 or 4 years. Link to comment Share on other sites More sharing options...
Derek Uzzell Posted February 18, 2021 Share Posted February 18, 2021 This 2018 MotorHomeFun discussion (with photos) may be helpful. https://www.motorhomefun.co.uk/forum/threads/is-this-a-motion-sensor-if-so.188179/ Link to comment Share on other sites More sharing options...
breakaleg Posted February 18, 2021 Share Posted February 18, 2021 If it's the same as mine it is the alarm sensor, if you press it while in the van with the alarm off you should see a light flash on and off as you move, should it not flash, you probably need a new battery in it. There is also a magnetic sensor in the habitation door frame. Pete Link to comment Share on other sites More sharing options...
ColinM50 Posted February 18, 2021 Share Posted February 18, 2021 I've got one of those in our Eldiss 196 and under the impression it's a CO2 detector though nbow you say it, it could be alarm/motion detector too. Either way just change the batteries (lol) Link to comment Share on other sites More sharing options...
breakaleg Posted February 18, 2021 Share Posted February 18, 2021 The one that I mention is about one inch by two inches in size. Pete Link to comment Share on other sites More sharing options...
Derek Uzzell Posted February 18, 2021 Share Posted February 18, 2021 Is this the ceiling-mounted box Eddie refers to in the original posting? If so, it’s part of the alarm system Link to comment Share on other sites More sharing options...
potus4388 Posted February 18, 2021 Share Posted February 18, 2021 I have a Marquis 120 also and yes, it is a movement sensor for the alarm. Link to comment Share on other sites More sharing options...
Charles Posted February 18, 2021 Share Posted February 18, 2021 The batteries are CR2032. Just ordered a twin pack of Duracels on ebay £1.79 Link to comment Share on other sites More sharing options...
Keithl Posted February 18, 2021 Share Posted February 18, 2021 Or get 4 for £2.99 from your local Screwfix https://www.screwfix.com/p/varta-cr2032-coin-cell-battery-4-pack/894hk Toolstation also have similar prices! Keith. Link to comment Share on other sites More sharing options...
everhopeful Posted February 18, 2021 Share Posted February 18, 2021 Don't assume that just because the red light flashes on test that this sensor actually works. In a previous Majestic 120 I tested the sensor and even with new batteries whatever I tried did not activate the alarm. I eventually found that during installation some numpty had not paired the sensor with the main alarm unit. Obviously testing this isn't in any PDI either. It's a right faff to do this, but I eventually got there and it worked perfectly ever after. To test properly you need to cover the two cab sensors, shut all doors, sit in the hab area, set the alarm and wait a few minutes for the alarm to settle down. Then move slightly and if you're lucky you'll make lots of noise! Have fun! Link to comment Share on other sites More sharing options...
Derek Uzzell Posted February 19, 2021 Share Posted February 19, 2021 I think the alarm chosen by Elddis for their recent-ish motorhomes may be the Autowatch 695RLC system advertised here https://www.rhinoinstalls.co.uk/motorhome-alarm-system and an Owner’s Manual can be found here https://www.dragoncaralarms.co.uk/info/autowatch_695_owners_manual-1.pdf There’s a fair amount of on-line Elddis-related discussion about the Autowatch systems (not all complimentary) https://tinyurl.com/3rax2d67 (It’s being assumed that the "small box on ceiling just in front of rear roof ligh” that Eddie refers to in his original posting is the alarm system PIR sensor I provided photos of earlier, Although that is probably correct, it would be helpful if Eddie could confirm that this is indeed the case.) Link to comment Share on other sites More sharing options...
Keithl Posted February 19, 2021 Share Posted February 19, 2021 Well Eddie hasn't logged on to the forum since posting his question so I wonder whether he has either read the answers without logging on or found the answer elsewhere. "Last logon 2021-02-17 8:58 PM" the answer to which we may never know :D Keith. Link to comment Share on other sites More sharing options...
Eddie Vincent Posted February 20, 2021 Author Share Posted February 20, 2021 Sorry for delay in answering Yes it is an alarm sensor many thanks for your replies. Hopefully be able to get out and use it in the not too distant future. Link to comment Share on other sites More sharing options...
Derek Uzzell Posted February 20, 2021 Share Posted February 20, 2021 Thanks for the confirmation... Link to comment Share on other sites More sharing options...
Keithl Posted February 20, 2021 Share Posted February 20, 2021 Thanks for confirming Eddie. Keith. Link to comment Share on other sites More sharing options...
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