Chamberlain 821lm Liftmaster My Q Additional Sensor is ranked 11th in sensors based on our comprehensive analysis.
Reviewed by more than 42 consumers, more than 67% of the reviews about this Chamberlain sensor had positive sentiment, meaning that these customers would probably advise purchasing this product when asked about a recommended sensor and hardware.
$33.95 (as of 01/09/2018 23:00 PDT details )Features:
- Extra sensor for lift master 821lm sensor only
- 821lm compatible 100% OEM , works for second door on the 821lm
- MyQ for 2 doors