How to pair multiple smoke alarms? (RM174RF/RM175RF)

Modified on Thu, 20 Aug at 3:57 PM

Step 1

Prepare the detectors which you need to pair.
Select one detector to go into “sending mode”.
Press and hold the test button on this unit
until the LED light is continuously ON. This will
take up to 12 seconds.

Step 2

Press and hold the test button on the other
detectors for approximately 1 second, release
the button at once when you see the LED blink
red.

Step 3

The “sending” & “learning” detectors will both
blink rapidly to indicate they are paired.
After this the LED on the master detector will turn
bright red and stay on continuously.
The LED on the learning detector will turn red, but will
be slightly dimmed.
You can pair multiple smoke detectors in this
same manner consecutively.

Step 4

After completing the pairing process, press
and release the test button on all the smoke
detectors to end “pairing mode”, the LED on
the units will turn off.
The detectors are now paired and ready to be tested.