Seco-Larm SD-C121-S1 Door Closer Size 2 lcd-display On-board OBD Black Box logs

On-board OBD Black Box logs 8

Wide Compatibility – Designed for use with a range of LiftMaster Elite Telephone Entry Systems (verify compatibility before purchasing)

or access control wiring not expressly listed

Component: Receiver mounting bracket

This critical component transmits motor torque to the gate arm assembly

Seco-Larm SD-C121-S1 Door Closer Size 2 lcd-display On-board OBD Black Box logsFixed Size 2 Surface Door Closer for Lighter Commercial Doors The Seco Larm SD C121 S1 is a surface mounted door closer for metal or wood doors weighing up to 100 pounds and measuring up to 42 inches wide. Its fixed Size 2 spring force is suited to lighter doors that do not require the higher closing force or broader adjustment range of a heavier commercial closer. Separate sweep and latch valves allow the closing cycle to be adjusted in two stages.