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DC 12V Remote Switch Universal 2 Channel Wireless RF Switch, 433Mhz Remote Wireless Momentary Switch Transmitter and Receiver for Indoor and Outdoor Use DC 4V 5V 6V 9V 12V 24V: Doors: Amazon.com.au
Two channel 433 Mhz add on garage door receiver plus 2 remote controls
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DC12V 2CH 2-Channel Wireless RF Remote Control Relay Switch Transmitter+Receiver | eBay
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2 Channel Remote Control System - RobotShop
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2 Channel Remote Control System - RobotShop
RM2 - 2 Channel Control System | Aust Pools & Product
Two Channel Remote Control System
Two Channel Remote Control System
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RM2 - 2 Channel Control System | Aust Pools & Product
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RM2 - 2 Channel Control System | Aust Pools & Product
