Product Description

Chamberlain universal garage door monitor, model CLDM1. Works with all brands of garage door access systems. Sealed in original clear plastic blister packaging. Light gray plastic housing on both the sensor and monitor units. Green LED indicates CLOSED. Red LED indicates OPEN. Package includes one garage door sensor, one monitor, one 3V lithium battery, one transformer AC adapter, one fastening strip, and instructions. No tools needed for installation. UPC: 787083243615.