Abus FURM50000 Mode D'emploi page 44

Important
A fault has occurred if the activity LED flashes 1 x per second and the detector beeps every 10 seconds.
Check the batteries. Reinsert or replace the batteries.
1 = Batteries, 2 = DIP switch
Fig. 2
1 = Test button and activity LED
Fig. 3
EN
1
2
14 EN