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Dual Relay Controller Board

Low-Cost 2 Relay Control Board

Large Selection

We offer a large selection of Dual Relay Drivers for applications ranging from low power signal switching to high voltage, high current applications.  If your looking for a two channel relay controller we have a configuration to fit every need.  Our R25/R210 series relay can be controlled at 9600 baud and are compatible with any computer or microcontroller capable of delivering RS-232 data.  Our 2 Channel USB Relay interface mounts as a virtual COM port for easy programming across all major operating systems, ensuring compatibility with all programming languages that support serial connections.  And if your looking for wireless, our 2 Channel 802.15.4 Wireless Relay couldn't be easier!  A 802.15.4 Wireless relay controller offers wireless communications with no special software! 

Latest Advancements

Look for our ProXR series controllers for the latest advancements is signal switching!  Available in USB Relay and 802.15.4 Wireless Relay configurations, the ProXR Series is capable of controlling up to 256 relays.  Whether you need power switching or DPDT signal switching, the ProXR Series are built from the ground up with Expansion in mind.  Simply Chain the XR Expansion Modules, one after another, to meet your computer controlled switching requirements. For more detailed information and to order, please click on the links below.

2-Relay Controller Boards

R25
RS-232 2-Channel 5-Amp SPDT Relay Controller Board
$59.00
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R210
RS-232 2-Channel 10-Amp SPDT Relay Controller Board
$69.00
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R21DPDT
RS-232 2-Channel 1-Amp DPDT Small Signal Relay Controller Board
$59.00
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R23DPDT
RS-232 2-Channel 3-Amp DPDT Signal Relay Controller Board
$64.00
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R25DPDT
2-Channel 5-Amp DPDT High-Current Signal Relay Controller Board
$69.00
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R220
2-Channel RS-232 20-Amp SPDT High-Power Relay Controller Board
$79.00
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R230
2-Channel 30-Amp SPST High-Power RS-232 Relay Controller Board
$89.00
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UADR220PROXR
USB Relay Controller 2-Channel 20 Amp SPDT + 8-Channel 8/10-Bit A/D
$126.00
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UADR230PROXR
USB Relay Controller 2-Channel 30 Amp SPST + 8-Channel 8/10-Bit A/D
$136.00
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ZADR220PROXR
802.15.4 Wireless Relay Controller 2-Channel 20 Amp SPDT + 8-Channel 8/10-Bit A/D
$139.00
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ZADR230PROXR
802.15.4 Wireless Relay Controller 2-Channel 30 Amp SPST + 8-Channel 8/10-Bit A/D
$149.00
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ADR220PROXR
RS-232 Relay Controller 2-Channel 20 Amp SPDT + 8-Channel 8/10-Bit A/D
$104.00
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ADR230PROXR
RS-232 Relay Controller 2-Channel 30 Amp SPST + 8-Channel 8/10-Bit A/D
$114.00
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BTADR220PROXR
Bluetooth Wireless Relay Controller 2-Channel 20 Amp SPDT + 8-Channel 8/10-Bit A/D
$174.00
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BTADR230PROXR
Bluetooth Wireless Relay Controller 2-Channel 30 Amp SPST + 8-Channel 8/10-Bit A/D
$184.00
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FOADR220PROXR
Fiber Optic Relay Controller 2-Channel 20 Amp SPDT + 8-Channel 8/10-Bit A/D
$164.00
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FOADR230PROXR
Fiber Optic Relay Controller 2-Channel 30 Amp SPST + 8-Channel 8/10-Bit A/D
$174.00
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R25RS
RS-232 2-Channel 5-Amp SPDT Relay Controller with RS-232 Interface
$69.00
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R210RS
2-Channel RS-232 10-Amp SPDT Relay Controller with RS-232 Interface
$79.00
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R21DPDTCNRS
2-Channel 1-Amp DPDT Relay Controller with RS-232 and Relay Interface
$79.00
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R23DPDTCNRS
2-Channel 3-Amp DPDT Relay Controller with RS-232 and Relay Interface
$84.00
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R25DPDTCNRS
2-Channel 5-Amp DPDT Relay Controller with RS-232 and Relay Interface
$89.00
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R220HP
LOW COST 2-Channel 20A SPDT RS-232 Relay Controller
$24.00
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R220HPRS
LOW COST 2-Channel 20A SPDT Relay Controller with RS-232 Interface
$34.00
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R220RS
2-Channel 20A SPDT Relay Controller with RS-232 Interface
$89.00
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R230RS
2-Channel 30A SPST Relay Controller with RS-232 Interface
$99.00
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R21DPDTCN
2-Channel 1-Amp DPDT RS-232 Relay Controller with Relay Interface
$69.00
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R23DPDTCN
2-Channel 3-Amp DPDT RS-232 Relay Controller with Relay Interface
$74.00
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R25DPDTCN
2-Channel 5-Amp DPDT RS-232 Relay Controller with Relay Interface
$79.00
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SSR2x
RS-232 2-Channel Solid State Relay Controller
$59.00
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SSR2xRS
RS-232 2-Channel Solid State Relay Controller with RS-232 Interface
$69.00
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ZADR220PROXR_ZBMESH
ZB ZigBee Relay Controller 2-Channel 20 Amp SPDT + 8-Channel 8/10-Bit A/D
$139.00
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ZADR230PROXR_ZBMESH
ZB ZigBee Relay Controller 2-Channel 30 Amp SPST + 8-Channel 8/10-Bit A/D
$149.00
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MirXR25
Relay Mirror Pair 2-Controllers Each with Two 5-Amp SPDT Relay and 2 Contact Closure Inputs
$186.00
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MirXR210
Relay Mirror Pair 2-Controllers Each with Two 10-Amp SPDT Relay and 2 Contact Closure Inputs
$206.00
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MirXR220
Relay Mirror Pair 2-Controllers Each with Two 20-Amp SPDT Relay and 2 Contact Closure Inputs
$226.00
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MirXR230
Relay Mirror Pair 2-Controllers Each with Two 30-Amp SPST Relay and 2 Contact Closure Inputs
$246.00
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LRR25_USB
Reactor Relay 2-Channel 5-Amp SPDT + 8-Channel 8-Bit A/D with USB Interface
$129.00
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LRR210_USB
Reactor Relay 2-Channel 10-Amp SPDT + 8-Channel 8-Bit A/D with USB Interface
$139.00
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LRR220_USB
Reactor Relay 2-Channel 20-Amp SPDT + 8-Channel 8-Bit A/D with USB Interface
$149.00
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LRR230_USB
Reactor Relay 2-Channel 30-Amp SPST + 8-Channel 8-Bit A/D with USB Interface
$159.00
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LRR25_802154
Reactor Relay 2-Channel 5-Amp SPDT + 8-Channel 8-Bit A/D with 802.15.4 Interface
$118.00
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LRR210_802154
Reactor Relay 2-Channel 10-Amp SPDT + 8-Channel 8-Bit A/D with 802.15.4 Interface
$128.00
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LRR220_802154
Reactor Relay 2-Channel 20-Amp SPDT + 8-Channel 8-Bit A/D with 802.15.4 Interface
$138.00
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LRR230_802154
Reactor Relay 2-Channel 30-Amp SPST + 8-Channel 8-Bit A/D with 802.15.4 Interface
$148.00
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LRR25_ZBMESH
Reactor Relay 2-Channel 5-Amp SPDT + 8-Channel 8-Bit A/D with ZB ZigBee Interface
$118.00
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LRR210_ZBMESH
Reactor Relay 2-Channel 10-Amp SPDT + 8-Channel 8-Bit A/D with ZB ZigBee Interface
$128.00
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LRR220_ZBMESH
Reactor Relay 2-Channel 20-Amp SPDT + 8-Channel 8-Bit A/D with ZB ZigBee Interface
$138.00
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LRR230_ZBMESH
Reactor Relay 2-Channel 30-Amp SPST + 8-Channel 8-Bit A/D with ZB ZigBee Interface
$148.00
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LRR25_XSC
Reactor Relay 2-Channel 5-Amp SPDT + 8-Channel 8-Bit A/D with XSC Interface
$183.00
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LRR210_XSC
Reactor Relay 2-Channel 10-Amp SPDT + 8-Channel 8-Bit A/D with XSC Interface
$193.00
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LRR220_XSC
Reactor Relay 2-Channel 20-Amp SPDT + 8-Channel 8-Bit A/D with XSC Interface
$203.00
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LRR230_XSC
Reactor Relay 2-Channel 30-Amp SPST + 8-Channel 8-Bit A/D with XSC Interface
$213.00
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KLRR25_USB
Key Fob Relay 2-Channel 5-Amp SPDT + 1-Channel 8-Bit A/D with USB Interface
$167.00
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KLRR210_USB
Key Fob Relay 2-Channel 10-Amp SPDT + 1-Channel 8-Bit A/D with USB Interface
$177.00
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KLRR220_USB
Key Fob Relay 2-Channel 20-Amp SPDT + 1-Channel 8-Bit A/D with USB Interface
$187.00
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KLRR230_USB
Key Fob Relay 2-Channel 30-Amp SPST + 1-Channel 8-Bit A/D with USB Interface
$197.00
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KLRR25_802154
Key Fob Relay 2-Channel 5-Amp SPDT + 1-Channel 8-Bit A/D with 802.15.4 Interface
$156.00
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KLRR210_802154
Key Fob Relay 2-Channel 10-Amp SPDT + 1-Channel 8-Bit A/D with 802.15.4 Interface
$166.00
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KLRR220_802154
Key Fob Relay 2-Channel 20-Amp SPDT + 1-Channel 8-Bit A/D with 802.15.4 Interface
$176.00
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KLRR230_802154
Key Fob Relay 2-Channel 30-Amp SPST + 1-Channel 8-Bit A/D with 802.15.4 Interface
$186.00
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KLRR25_ZBMESH
Key Fob Relay 2-Channel 5-Amp SPDT + 1-Channel 8-Bit A/D with ZB ZigBee Interface
$156.00
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KLRR210_ZBMESH
Key Fob Relay 2-Channel 10-Amp SPDT + 1-Channel 8-Bit A/D with ZB ZigBee Interface
$166.00
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KLRR220_ZBMESH
Key Fob Relay 2-Channel 20-Amp SPDT + 1-Channel 8-Bit A/D with ZB ZigBee Interface
$176.00
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KLRR230_ZBMESH
Key Fob Relay 2-Channel 30-Amp SPST + 1-Channel 8-Bit A/D with ZB ZigBee Interface
$186.00
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KLRR25_XSC
Key Fob Relay 2-Channel 5-Amp SPDT + 1-Channel 8-Bit A/D with XSC Interface
$221.00
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KLRR210_XSC
Key Fob Relay 2-Channel 10-Amp SPDT + 1-Channel 8-Bit A/D with XSC Interface
$231.00
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KLRR220_XSC
Key Fob Relay 2-Channel 20-Amp SPDT + 1-Channel 8-Bit A/D with XSC Interface
$241.00
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KLRR230_XSC
Key Fob Relay 2-Channel 30-Amp SPST + 1-Channel 8-Bit A/D with XSC Interface
$251.00
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R25PL_802154
ProXR Lite Relay 2-Channel 5-Amp SPDT with 802.15.4 Interface
$93.00
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R210PL_802154
ProXR Lite Relay 2-Channel 10-Amp SPDT with 802.15.4 Interface
$103.00
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R220PL_802154
ProXR Lite Relay 2-Channel 20-Amp SPDT with 802.15.4 Interface
$113.00
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R230PL_802154
ProXR Lite Relay 2-Channel 30-Amp SPST with 802.15.4 Interface
$123.00
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R25PL_USB
ProXR Lite Relay 2-Channel 5-Amp SPDT with USB Interface
$104.00
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R210PL_USB
ProXR Lite Relay 2-Channel 10-Amp SPDT with USB Interface
$114.00
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R220PL_USB
ProXR Lite Relay 2-Channel 20-Amp SPDT with USB Interface
$124.00
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R230PL_USB
ProXR Lite Relay 2-Channel 30-Amp SPST with USB Interface
$134.00
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R25PL_ZBMESH
ProXR Lite Relay 2-Channel 5-Amp SPDT with ZB ZigBee Interface
$93.00
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R210PL_ZBMESH
ProXR Lite Relay 2-Channel 10-Amp SPDT with ZB ZigBee Interface
$103.00
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R220PL_ZBMESH
ProXR Lite Relay 2-Channel 20-Amp SPDT with ZB ZigBee Interface
$113.00
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R230PL_ZBMESH
ProXR Lite Relay 2-Channel 30-Amp SPST with ZB ZigBee Interface
$123.00
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R25PL_XSC
ProXR Lite Relay 2-Channel 5-Amp SPDT with XSC Interface
$113.00
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R210PL_XSC
ProXR Lite Relay 2-Channel 10-Amp SPDT with XSC Interface
$123.00
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R220PL_XSC
ProXR Lite Relay 2-Channel 20-Amp SPDT with XSC Interface
$133.00
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R230PL_XSC
ProXR Lite Relay 2-Channel 30-Amp SPST with XSC Interface
$143.00
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R25PL_ZETH-ME
Ethernet ProXR Lite Relay 2-Channel 5-Amp SPDT with ME Firmware
$143.00
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R210PL_ZETH-ME
Ethernet ProXR Lite Relay 2-Channel 10-Amp SPDT with ME Firmware
$153.00
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R220PL_ZETH-ME
Ethernet ProXR Lite Relay 2-Channel 20-Amp SPDT with ME Firmware
$163.00
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R230PL_ZETH-ME
Ethernet ProXR Lite Relay 2-Channel 30-Amp SPST with ME Firmware
$173.00
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LRR25_ZETH-NET
Ethernet Reactor Relay 2-Channel 5-Amp SPDT + 8-Channel 8-Bit A/D with Web-Browser Interface
$287.00
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LRR210_ZETH-NET
Ethernet Reactor Relay 2-Channel 10-Amp SPDT + 8-Channel 8-Bit A/D with Web-Browser Interface
$198.00
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LRR220_ZETH-NET
Ethernet Reactor Relay 2-Channel 20-Amp SPDT + 8-Channel 8-Bit A/D with Web-Browser Interface
$208.00
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LRR230_ZETH-NET
Ethernet Reactor Relay 2-Channel 30-Amp SPST + 8-Channel 8-Bit A/D with Web-Browser Interface
$218.00
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LRR25_ZETH-ME
Ethernet Reactor Relay 2-Channel 5-Amp SPDT + 8-Channel 8-Bit A/D with ME Firmware
$168.00
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LRR210_ZETH-ME
Ethernet Reactor Relay 2-Channel 10-Amp SPDT + 8-Channel 8-Bit A/D with ME Firmware
$178.00
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LRR220_ZETH-ME
Ethernet Reactor Relay 2-Channel 20-Amp SPDT + 8-Channel 8-Bit A/D with ME Firmware
$188.00
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LRR230_ZETH-ME
Ethernet Reactor Relay 2-Channel 30-Amp SPST + 8-Channel 8-Bit A/D with ME Firmware
$198.00
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LRSSR2x_USB
Reactor Relay 2-Channel Solid State + 8-Channel 8-Bit A/D with USB Interface
$129.00
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LRSSR2x_USB_MIX
Reactor Relay 2-Channel Solid State Mix + 8-Channel 8-Bit A/D with USB Interface
$129.00
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LRSSR2x_802154
Reactor Relay 2-Channel Solid State + 8-Channel 8-Bit A/D with 802.15.4 Interface
$188.00
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LRSSR2x_802154_MIX
Reactor Relay 2-Channel Solid State Mix + 8-Channel 8-Bit A/D with 802.15.4 Interface
$118.00
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LRSSR2x_ZBMESH
Reactor Relay 2-Channel Solid State + 8-Channel 8-Bit A/D with ZB ZigBee Interface
$118.00
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LRSSR2x_ZBMESH_MIX
Reactor Relay 2-Channel Solid State Mix + 8-Channel 8-Bit A/D with ZB ZigBee Interface
$118.00
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LRSSR2x_XSC
Reactor Relay 2-Channel Solid State + 8-Channel 8-Bit A/D with XSC Interface
$183.00
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LRSSR2x_XSC_MIX
Reactor Relay 2-Channel Solid State Mix + 8-Channel 8-Bit A/D with XSC Interface
$183.00
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LRSSR2x_ZETH-ME
Ethernet Reactor Relay 2-Channel Solid State + 8-Channel 8-Bit A/D with ME Firmware
$168.00
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LRSSR2x_ZETH-ME_MIX
Ethernet Reactor Relay 2-Channel Solid State Mix + 8-Channel 8-Bit A/D with ME Firmware
$168.00
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LRSSR2x_ZETH-NET
Ethernet Reactor Relay 2-Channel Solid State + 8-Channel 8-Bit A/D with Web-Browser Interface
$188.00
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LRSSR2x_ZETH-NET-MIX
Ethernet Reactor Relay 2-Channel Solid State Mix + 8-Channel 8-Bit A/D with Web-Browser Interface
$188.00
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MIRCR210
Wireless Relay Mirror Pair with 2 Contact Closure Inputs and Receiver with 2 Relay 10-Amp SPDT
$180.00
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MirCR210_MCNET
2-Way LAN and Internet Pair with 2 Contact Closure Sender and Receiver with 2 10-Amp SPDT Relays
$342.00
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MIRCR220
Wireless Relay Mirror Pair with 2 Contact Closure Inputs and Receiver with 2 Relay 20-Amp SPDT
$190.00
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MirCR220_MCNET
2-Way LAN and Internet Pair with 2 Contact Closure Sender and Receiver with 2 20-Amp SPDT Relays
$352.00
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MIRCR230
Wireless Relay Mirror Pair with 2 Contact Closure Inputs and Receiver with 2 Relay 30-Amp SPST
$200.00
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MirCR230_MCNET
2-Way LAN and Internet Pair with 2 Contact Closure Sender and Receiver with 2 30-Amp SPST Relays
$362.00
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MIRCR25
Wireless Relay Mirror Pair with 2 Contact Closure Inputs and Receiver with 2 Relay 5-Amp SPDT
$170.00
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MirCR25_MCNET
2-Way LAN and Internet Pair with 2 Contact Closure Sender and Receiver with 2 5-Amp SPDT Relays
$332.00
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TLR210_802154
Time Activated Relay 2-Channel 10-Amp SPDT with 802.15.4 Interface
$203.00
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TLR210_USB
Time Activated Relay 2-Channel 10-Amp SPDT with USB Interface
$214.00
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TLR210_XSC
Time Activated Relay 2-Channel 10-Amp SPDT with XSC Interface
$223.00
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TLR210_ZBMESH
Time Activated Relay 2-Channel 10-Amp SPDT with ZB ZigBee Interface
$203.00
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TLR210_ZETH-ME
Ethernet Time Activated Relay 2-Channel 10-Amp SPDT with ME Firmware
$153.00
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TLR210_ZETH-NET
Ethernet Time Activated Relay 2-Channel 10-Amp SPDT with Web-Browser Interface
$173.00
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TLR220_802154
Time Activated Relay 2-Channel 20-Amp SPDT with 802.15.4 Interface
$213.00
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TLR220_USB
Time Activated Relay 2-Channel 20-Amp SPDT with USB Interface
$224.00
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TLR220_XSC
Time Activated Relay 2-Channel 20-Amp SPDT with XSC Interface
$233.00
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TLR220_ZBMESH
Time Activated Relay 2-Channel 20-Amp SPDT with ZB ZigBee Interface
$213.00
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TLR220_ZETH-ME
Ethernet Time Activated Relay 2-Channel 20-Amp SPDT with ME Firmware
$163.00
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TLR220_ZETH-NET
Ethernet Time Activated Relay 2-Channel 20-Amp SPDT with Web-Browser Interface
$183.00
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TLR230_802154
Time Activated Relay 2-Channel 30-Amp SPST with 802.15.4 Interface
$223.00
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TLR230_USB
Time Activated Relay 2-Channel 30-Amp SPST with USB Interface
$234.00
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TLR230_XSC
Time Activated Relay 2-Channel 30-Amp SPST with XSC Interface
$243.00
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TLR230_ZBMESH
Time Activated Relay 2-Channel 30-Amp SPST with ZB ZigBee Interface
$223.00
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TLR230_ZETH-ME
Ethernet Time Activated Relay 2-Channel 30-Amp SPST with ME Firmware
$173.00
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TLR230_ZETH-NET
Ethernet Time Activated Relay 2-Channel 30-Amp SPST with Web-Browser Interface
$193.00
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TLR25_802154
Time Activated Relay 2-Channel 5-Amp SPDT with 802.15.4 Interface
$193.00
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TLR25_USB
Time Activated Relay 2-Channel 5-Amp SPDT with USB Interface
$204.00
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TLR25_XSC
Time Activated Relay 2-Channel 5-Amp SPDT with XSC Interface
$213.00
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TLR25_ZBMESH
Time Activated Relay 2-Channel 5-Amp SPDT with ZB ZigBee Interface
$193.00
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TLR25_ZETH-ME
Ethernet Time Activated Relay 2-Channel 5-Amp SPDT with ME Firmware
$143.00
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TLR25_ZETH-NET
Ethernet Time Activated Relay 2-Channel 5-Amp SPDT with Web-Browser Interface
$163.00
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