The UltraTouch™ Invisible Switch system with engine start system allows you to control any item with the utmost secrecy. The unique sensor design uses the natural electrical properties of your body to activate the unit and complete the desired circuit. The UltraTouch™ advanced sensor system allows you to hide the sensor behind or underneath any non-metallic items. For activation, simply touch the backside of the material to which the sensor is mounted.Works on glass, carpet, fiberglass, wood, non-metallic films, and more. Ideal for opening doors, rolling down windows, motorizing hidden compartments, linear actuator control, engine start and more!Insist on the best, and insist on AutoLoc and you be glad you did.