Linear LDCO850 Door Opener

The smart operator with an ultra-quiet, energy-efficient, DC-powered motor that runs at an AC-equivalent speed. Linears smart technology provides monitoring and control anytime, anywhere with Wi-Fi connectivity. Smooth, quiet, long-term reliable. Included Battery Backup for peace of mind, plus smart wall station and three-channel transmitter. 

WARNING: This product can expose you to chemicals including 1,3-Butadiene, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to

Part Number: LDCO850 

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Need Radio Control Accessories?

Check out our compatible models & accessories tab below.

Compatible Models & Accessories


Wireless KeypadMCT-1

1-Channel Visor TransmitterMCT-11

1-Channel Visor TransmitterMCT-2

2-Channel Visor TransmitterMCT-3

3-Channel Visor TransmitterMDKP

Exterior Wireless KeypadMDR

1-Channel ReceiverMDR-2

2-Channel ReceiverMDR/U

1-Channel Plug-in ReceiverMDRG

1-Channel Gate ReceiverMDT-1A

1-Channel Visor TransmitterMDT-1B

1-Channel Block Coded Visor TransmitterMDT-2A

3-Channel Visor TransmitterMDT-2B

3-Channel Block Coded Visor TransmitterMDT-4A

5-Channel Visor TransmitterMDT-4B

5-Channel Block Coded Visor TransmitterMDTK

Keypad TransmitterMT-1B

1-Channel Block Coded Visor TransmitterMT-2B

2-Channel Block Coded Visor TransmitterMTR1

1-Channel Visor TransmitterMTR3

3-Channel Visor TransmitterSMDRG

1-Channel Gate Receiver


Motor WarrantyLifetime
Belt WarrantyLifetime
Chain Warranty5 yrs
Mechanical Parts Warranty5 yrs
Electrical1 yr
Overall Length with HBT7C/HCT7C124.5″
Overall Length with HBT8C/HCT8C139″


  • Wi-Fi connectivity with our free Linear app
  • Real-time monitoring and control of garage door — anywhere, anytime
  • Your garage door opens when you arrive home and closes when you leave — hands free
  • Up to ten authorized users
  • Set custom access and permissions for each user
  • Scheduling of door and light operation, including timed, automatic door closing
  • Compatible with Amazon Alexa™, Google Assistant™ and IFTTT™
  • Ultra-smooth, quiet performance thanks to variable speed operation
  • Dimmable LED light panel, 100W equivalent, energy efficient
  • Integrated battery backup included for peace of mind
  • Self-diagnostic, self-adjusting system continually checks for proper operation
  • Compatible with HomeLink™
  • American engineering and quality assurance
  • Low-power standby mode dramatically reduces energy consumption
  • Supplies 800 Newtons of lifting force for heavy doors
  • Recommended with belt-drive or chain-drive T or I beam rails of 7′ or 8′
  • Built-in MegaCode format receiver
  • Operator comes with three-button MTR3 visor transmitter and WWS850 wall station

Info & Guides

  • Control and monitor the LDCO850 garage door operator via mobile device with the Linear PRO Access app
  • Offers up to ten authorized users passive/hands-free opening and closing of the LDCO850 garage door
  • Free app can be used with most smartphones and tablets