- Transmit power: >=10mW
- Transmission speed: 50-60KHz
- Frequency windage: ±0.2MHz
- Transmission distance: 100 meter(open space)
- Operating voltage: 3V VR2032
- Net weight: 50g
- Standby current: less 2uA
- Transmission current: less 10mA
- Modulation: ASK (Crystal Oscillator )
- This compatible LiftMaster model 971LM is a garage door opener remote control for the Security+ versions of garage door openers on the 390MHz frequency It works with LiftMaster 971LM remote
- Works with LiftMaster, Chamberlain, Sears Craftsman and other private labeled Security+ 390MHz brands of garage door openers by Chamberlain that have the Red or Orange learn button on the back of the garage door opener manufactured between 1997 and 2005.
- It can also can be used to replace any of the models of remotes listed to control one Security+ garage door or gate operating on 390MHz frequency.
- The LiftMaster 971LM is directly compatible with the following models to control one Security+ device on 390MHz:
Chamberlain: 950CB, 953CB, 956CB.
Craftsman: 139.53680, 139.53681
Liftmaster 91LM, 92LM, 94LM, 96LM, 970LM, 971LM, 972LM, 973LM, 973W, 974LM.