Urnqowuy 41A4373A Garage Door Safety Sensor – LiftMaster & Chamberlain (No Bracket)

Overview

Upgrade your garage door safety with the Urnqowuy 41A4373A beam sensor. This replacement pair is designed for legacy LiftMaster and Chamberlain openers from the 1990s, including common model series such as 1240, 1245, 1250, 1255, 1260 and ATS211R. It offers a practical sensing solution that helps detect obstacles in the door path, supporting smooth, cautious operation without overpromising results.

The sensor pair is compact and purposefully built for reliable performance. When the beam is interrupted by a maneuvering vehicle or object, the door is guided to reverse, reducing the risk of unintended contact and damage. This is about adding a layer of awareness to a daily task rather than promising dramatic outcomes.

Compatibility at a glance

• Fits LiftMaster models from 1993 to the late 1990s and Chamberlain models from 1993 to the late 1990s
• Also compatible with 1240, 1245, 1245-266, 1246, 1250, 1250-266, 1255, 1255-166, 1255-266, 1256, 1260, 1260-166, 1260-266, ATS211R, ATS211 and more

Durability and build

• Sturdy ABS plastic housing is weatherproof and resistant to moisture, dust, and temperature changes
• Rugged design supports year round use in typical garage environments

Easy installation

The kit adopts a plug and play approach with clear wiring instructions. No special tools are required for most setups.

What’s included

• 1 x sending sensor
• 1 x receiving sensor
• 5 x wire connectors
• 2 x round head bolts
• 2 x wing nuts
• 1 x installation instruction

Note: Please review the images and part number to confirm this is the correct sensor for your opener. If unsure, reach out before purchasing to avoid mismatches.