Products Motion/Stop Sensor Mack Information Systems, Inc./25 South Avenue, Wyncote PA 19095/Phone:215-884-8123/Fax:215-886-5030/Email:info2@mackinfo.com Part #: 37-00-127 Products Page If the equipment stops in proximity to the sensor, it will initiate an alarm sequence. Since the motion sensor is a low-powered unit, as many as five may be daisy-chained from one Class II wall-mounted transformer supplied by Mack.