Special Price $55.14 Regular Price $62.13
In stock

Liftmaster G821LMB 2SENSOR

100% Brand New Authentic LiftMaster Part

Also known as:  821LM-SENSOR, 041D7924-1

LiftMaster myQ® Smart Garage Door Sensor

Details

Liftmaster G821LMB 2SENSOR

100% Brand New Authentic LiftMaster Part

This add-on door sensor works with the myQ Smart Garage Hub to monitor and control a second garage door opener. This version of the myQ door sensor is only compatible with the new myQ Smart Garage Hub by LiftMaster, Model 821LMB. 

Please note: This product replaces both 821LM-SENSOR and 821LMB-SENSOR and can be used as a replacement for either one.

  • Give your customers the ability to monitor, open and close a second garage door opener with myQ Smart Garage Hub
  • Installation and Programming is easy: Mount to inside top panel of garage door and add to an existing myQ account through the MyQ app
  • Compatible with myQ Garage (821LM)

More Information

More Information
SKU 041D7924-1
Manufacturer Liftmaster
Prop 65

⚠ WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer or birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov

Reviews 24

Customer Reviews
  1. Excellent Customer Service
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    I ordered the wrong part; I sent an email to correct the problem and it was fixed quickly, even after hours.

    Review by Bryon C.

    Posted on

  2. Spot on
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    I have 2 new garage door openers and wanted to add the door open/closed sensors. The hub came with one but I needed one more. Exactly what I needed. Works great. Fair price.

    Review by Paul

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  3. Great
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    Added this to my existing MYQ opener and it worked great. Very easy installation. To think my alarm company was going to charge me $75.00 for this .

    Review by George

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  4. Great addition to my Garage
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    I am loving this. Very easy to setup..
    I can control my garage and check the status from anywhere through smart phone app..

    Review by Narender

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  5. Very satisfied
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    Good price, fast ship. Great quality.

    Review by Happy customer

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  6. Very satisfied
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    Good price, fast ship. Great quality.

    Review by Happy customer

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  7. Fantastic!
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    The sensor works perfectly and the cost was so much less than the LiftMaster/Chamberlain site. I have a Chamebrlain receiver and this worked seamlessly with it. Excellent shipping time (a few days). Very happy!

    Review by Jim

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  8. Works great.
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    Sensor arrived on time in good condition. Exactly what I ordered for a good price.

    Review by Karilou

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  9. Great price.
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    Product arrived in good condition. Was precisely what we ordered. Works great. Lower cost than other sites. Would recommend Preferred Doors and would order from them again.

    Review by Karilou

    Posted on

  10. Excellant
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    Good price and product works great. Quick turnaround time on order

    Review by roadrunner

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  11. Great.
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    Great

    Review by Sucutum

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  12. Works great
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    Exactly what I asked for and delivered quickly. Thanks!

    Review by VikingCoder

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  13. Great Addition to MyQ Garage
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    Since the basic MyQ Garage comes with only one sensor, this additional sensor is a must-have if you have two garage doors and want to control both using your MyQ Garage. Easy to install and easy to configure.

    Review by Mike

    Posted on

  14. Great value for extra sensor
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    Received the item quickly. Great value for Chamberlain MyQ system if you need an extra sensor. Worked seemlessly right out the box, just stick it on my door and the system recognized.

    Review by Sam

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  15. Worked without problems
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    This extra sensor is very difficult to find...it was not available on Amazon. Preferred Doors, LLC was the first place I found the extra sensor at a reasonable price and excellent delivery service.

    Review by JP

    Posted on

  16. Perfect
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    Good price and shipped quickly. Just added the second garage door to my chamberlain MyQ system and all is working great!

    Review by Thomas

    Posted on

  17. As described and quick shipping
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    I would conduct business with Preferred Doors again.

    Review by CCBigs

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  18. GRRRRR ate!
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    Very pleased with how your online store runs.. great great and great!
    thanks

    Review by Ken

    Posted on

  19. Overall good deal
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    Received the item quickly. Sensor arrived in excellent condition. I only gave 4 stars for quality because the sensor was not in original packaging. Overall, very satisfied.

    Review by eschase5

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  20. Outstanding
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    I'm very satisfied with my order and amazed at how fast my order came in the mail. Thank you again.

    Review by Dwayne

    Posted on

  21. Thanks a lot ! Top Seller A++++
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    Thanks a lot ! Top Seller A++++

    Review by strottifl

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  22. Great item. Very pleased.
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    Great item. Very pleased.

    Review by jsemler

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  23. Just what I wanted and fast shipping. Was not retail boxed, but who cares.
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    Just what I wanted and fast shipping. Was not retail boxed, but who cares.

    Review by ssg79

    Posted on

  24. good deal
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    good deal

    Review by camper_lost

    Posted on

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