LCL1729 Features: * Motion activated start / stop sensor * Automatic start / stop device based on movement sensor * Mounts on top of the back panel or back draft panel of downdraft table * Fan of downdraft table starts running when sensor detects any movement above the work grid * When the work has stopped, the fan automatically switches off after a certain run-out period * Cable connects at the rear of the downdraft table * For use with 400-MS/A model only