The ProLine Dynamic Timer allows companies to monitor back up on production lines. Set the value for the timer. Once the photo-sensor is blocked for that time, the output contacts will close allowing you to light a lamp, sound a buzzer, or signal other equipment. Choose from Hours/Minutes or Minutes/Seconds. Includes a 2" range diffuse sensor with magnet mount and 3m cable as well as an output cable with flying leads (N.O. Contact and Remote Reset). Other sensor inputs are available as well as cable extensions.