Replacement smoke alarms

[audiorob]

My caravan is fitted with Fire Angel S1-601. Googling for a replacement Amazon suggest an Ultrafire ULL510 and Ebay a Firehawk FHB10. They look to be identical! Both provide a thin connecting plate to cover the existing back plate to which the new alarm clips (to save making additional screw-holes in the ceiling). Easy! However it would appear that the Fire Angel S1-610, 620 and 622 are still available and by appearances share the original backplate with the current version. Any reader able to clarify for me as to which is my best option? THis is what is shown for both Ultrafire and Firehawk.

 

[Dustydog]

On the CO Alarm make sure the kite mark is BS EN50291-2 . It’s the last digits -2 that matter. Domestic house models are not the same . The -2 are rated for caravan use because of the greater temperature contrasts experienced.I have the Fire angel smoke detector and believe it functions well.

 

[Hutch]

Also the -2 for caravans, motor homes and boats, are rated for higher vibrations experienced.