Control your Sapphire screen with this clever black box, that plugs into the power line on a projector. Connect the Power Synchro Relay to the power cord of the projector and the RF IR converter to the screen to create a synchronized control system. The Power Synchro Relay is designed for projectors that do not have trigger outputs, it detects the power current of the projector and transmits a wireless signal to the receiver. When the projector is turned on, the projection screen will automatically lower, when the projector is turned off, the projection screen will automatically retract. Instructions:
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