Boomer™ Retro-flective Beam Break Trigger You have your a Boomer™ Series Air Cannon, and want to pay attention to your ToTers, concessions and haunt actors.  Instead of reaching for the switch, or looking for a remote trigger in your pocket under your costume, you want our Beam Break Trigger to fire your cannons & props for you.  Place the Retro-flective Beam Break Sensor, & Reflector where-ever you know foot or trail traffic will pass. The most consistent triggering option available, each person who passes thru the invisible beam will activate the effect. Use our Photo Retro-flective Beam break Trigger to activate your props. All you need to do is mount it an out of the way location and attach the small reflector to an opposite surface to bounce the beam back to the sensor. Beam is good for widths up to 18', the sensor unit is weather safe. An optional timing control board can be used to trigger the cannon for a specific duration, and prevent re-firing for a specified amount of time. Perfect on the floor, along your hay rides path, or along the haunt trail. Simply plug the ¼" plug with 10' cable into the air cannon fire control port. Can be used with any Minions Web Boomer triggers using a 1/4" audio "Y" connector for on demand control or automatic control. Extend the distance from the Boomer by adding additional 1/4" audio cable. Battery operated. 1 Retro-flective Beam Break Trigger can control multiple cannons. Can be used in combination with any Minions Web triggers or effects. Add ¼" audio "Y" connector for on demand and/or automatic control. Mount Bracket, Reflector, Sensor, Instructions, and (2) 9V battery included. 1 year warrantee from date of purchase.