★★★★★
Mounted next to my garage entrance — kids can come home from school without keys, and my dog walker has the PIN. Five years in, still working on the original 9 V battery.
Liftmaster
377LM Wireless Keypad
315 MHz Security+ exterior wireless keypad with rolling-code encryption and a backlit 10-key pad. Mounts outside the garage so family members and trusted visitors can enter using a 4-digit PIN — no remote required. Pairs with any Liftmaster, Chamberlain, or Sears Craftsman opener that has a purple learn button.
$32.95
● In stock — ships next business day
🛟 Free technical support
📄 Programming & FAQ
- ModelLiftmaster 377LM
- Frequency315 MHz · billion-plus rolling codes
- CompatibilitySecurity+ openers (purple learn button)
- Battery9 V alkaline · 2-year typical life
- FCC IDHBW1573
- PIN length4 digits · single PIN supported
In the box
- Liftmaster 377LM keypad
- Mounting bracket & weatherproof gasket
- Stainless mounting screws
- 9 V battery (installed)
- Programming & instruction manual
Compatibility
Confirmed-compatible openers, receivers, and the older keypads this part replaces. If your model isn't listed, send us a photo and we'll verify before you buy.
Liftmaster openers
3110
3220
3245
3255
3265
3280
3500
3575
3585
3595
1345
1355
ATS2113X
Chamberlain openers
HD200
HD400
HD600
HD950
WD822KD
WD832KEV
PD212
PD752KD
Replaces these keypads
Liftmaster 977LM (390 MHz predecessor)
978LM
Chamberlain 940EV
940EV-P2
For openers with a green, orange, or red learn button, order the 976LM instead. For multi-code or temporary-PIN support, see the 66LM.
Programming the 377LM
Set your 4-digit PIN at the keypad first, then pair it with the opener using the standard learn-button procedure.
- Open the keypad cover. Press and hold the * and # keys together until the LED blinks. Enter your new 4-digit PIN twice — the LED confirms with a steady glow.
- At the opener, press the purple "learn" button on the side of the motor unit. The indicator light stays on for 30 seconds.
- Within 30 seconds, return to the keypad, enter your PIN, and press ENTER. The motor light blinks twice — pairing is complete.
The 377LM supports a single 4-digit PIN. To change the PIN later, repeat step 1 — re-pairing at the opener is not required.
What customers say
★★★★★
Backlight is visible at night, gasket is sturdy, button feel is excellent. Quality product.