★★★★★
Bought this after the third time I drove off and couldn't remember if the garage was closed. Now I just glance at the kitchen counter on my way out.
Liftmaster
915LM Universal Garage Door Monitor
A countertop indicator that tells you at a glance whether your garage door is open or closed — from any room in the house. Universally compatible with any garage door, any brand. No tools, no wiring, no hub.
$29.95
● In stock — ships next business day
🛟 Free technical support
📄 Installation & FAQ
- ModelLiftmaster 915LM
- CompatibilityUniversal — any opener, any brand
- RangeUp to 200 ft through walls
- Door sensorBattery-powered tilt sensor
- IndicatorPlug-in receiver with green/red LED
- Door sensor battery9 V (included) · 1-year typical life
In the box
- Tilt sensor with adhesive mounting strip
- Plug-in indicator receiver
- 9 V battery (installed in sensor)
- Instruction manual
Compatibility
If your model isn't listed, send us a photo and we'll verify before you buy.
Garage doors
Sectional doors (any brand)
One-piece tilt-up doors
Roll-up doors
Commercial doors
Openers it works with
Liftmaster (any era)
Chamberlain (any era)
Genie
Sears Craftsman
Linear
Marantec
Stanley
Wayne Dalton
Even doors with no opener
The 915LM senses door position directly — it doesn't talk to your opener, so brand and frequency don't matter. Stick the sensor on the inside of the top door panel; plug the receiver into any indoor outlet.
How it works
Three components, two minutes to set up:
- Peel-and-stick tilt sensor mounts on the inside of your top door panel.
- When the door rotates open, the sensor wirelessly signals the indoor receiver.
- Receiver plugs into any wall outlet — green light = closed, flashing red = open.
What customers say
★★★★★
My opener is a 1989 Genie that doesn't talk to anything modern. The 915LM doesn't care — sensor on the door, receiver in the bedroom, done.