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NextGen IR to RF Remote Signal Conversion Extension Kit 433 MHz (LRRX)
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Amazon.com: 433MHZ GSM GPRS SMA Male Plug Horn Antenna Signal Amplifier 3 Meters : Electronics
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Amazon.com: UAYESOK 433Mhz Omni External Antenna for Remote Distance up to 1000 ft+, 3dbi Garage Door Electric Gate Opener Signal Booster, 433Mhz SMA Male GSM GPRS Aerial Device Receivers Alarm System :
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