LiftMaster Logic 3 Board - L3 ** NLA

Item #: K001A5729
Manufacturer: Chamberlain, LiftMaster

Product Discontinued

This product is no longer available for purchase

Replacement Information

K001A5729 can be replaced with the Logic 4 board, K001A6837, but the photo-eyes must be upgraded to the CPS-U.

Recommended Replacements

We suggest the following alternatives for this product

Available Now

LiftMaster Replacement Logic 4 Circuit Board L4

K001A6837 Chamberlain, LiftMaster Model: K001A6837
Product Specifications
  • iftMaster replacement logic board (L4) kit for Commercial operators L4 board is UL325 compliant & requires CSPU photoeyes for momentary contact operation
  • Works with LiftMaster operators of all voltages and HP
  • Maintenance Alert System (MAS)
  • Open Mid Stop feature
  • Timer-to-close mode
  • Car dealer mode
  • Maximum run timer (MRT)
  • Same as K001D6837
Available Now

LiftMaster Commercial Protector System Eyes

CPS-U Chamberlain, LiftMaster Model: CPS-U
Product Specifications
  • For LiftMaster Logic 2 3 4 & 5 commercial operators only
  • NOT for outdoor applications
  • Allows activation of the timer-to-close
  • Mounting hardware included
  • Sensing distance of 30 feet
  • CDO 2010 Ready
  • Receiving Eye - A: 001D6857-1 Sending Eye - A: 001D6857-2
  • Replaces CPS-L
Stock Availability

Product: LiftMaster Logic 3 Board - L3 ** NLA

Item #: K001A5729