All Yard Master Electric Screens only use Radio Frequency to control the screen’s operation. If you have a projector that does not have a dedicated 12v trigger output port, you can use the ZOMS-TR12V-V2. This wireless 12v trigger accessory is included with all Yard Mater Electric/Tension with serial numbers beginning with 19AE and newer. The ZOMS-TR12V-V2 plugs to the projector’s power terminal so no 12v projector trigger is required. Please click here for instructions on how to program the ZOMS-TR12V-V2.