47,000+ results for relay board
- 5V One 1 Channel Relay Module Board Shield For PIC AVR DSP ARM MCU ArduinoOpens in a new window or tabBrand NewC $1.35Top Rated SellerTop Rated Sellerdigital-factory (1,327) 99.8%Free shippingfrom ChinaFree returns200 sold
- 1pcs 1 2 4 8 Channel 5V 12V 24V Relay Module Board High and Low Level TriggerOpens in a new window or tabBrand NewC $5.12 to C $13.02Top Rated SellerTop Rated Sellerecbuying (1,331) 99.6%Free shippingfrom China
- 5V 12V 24V 30A 4 Channel Relay Module Board High And Low Level Relay ModuleOpens in a new window or tabBrand NewC $14.84Top Rated SellerTop Rated SellerWas: C $16.13 8% offalice1101983 (569,778) 99.5%+C $3.42 shippingfrom ChinaFree returns
- 1 Channel Relay Module Board Shield 5V 12V for Raspberry Pi, Arduino. Canada!Opens in a new window or tabBrand NewC $2.99Top Rated SellerTop Rated Sellerphillipjfry78 (4,527) 100%+C $2.65 shipping29+ sold
- 5V 1/2/4/6/8 Channel Relay Board Module Optocoupler LED for Arduino PiC ARM AVROpens in a new window or tabBrand NewC $1.35 to C $16.21Top Rated SellerTop Rated Selleralice1101983 (569,778) 99.5%+C $3.35 shippingfrom ChinaFree returns6,120+ sold
- 16-Channel 5V Relay Board Module w/ Optocoupler Power Supply Arduino PIC ARMOpens in a new window or tabBrand NewC $15.10Top Rated SellerTop Rated SellerWas: C $16.24 7% offczb6721960 (311,107) 99.1%+C $4.09 shippingfrom China
- GEYA 1 Channel Relay Board AC/DC 5/12/24/48V AC110/230V PLC Relay Module NPN PNPOpens in a new window or tabBrand NewC $12.59 to C $13.53Top Rated SellerTop Rated SellerWas: C $14.24 5% offgeya-homegarden (139) 100%Free shippingfrom ChinaFree returns
- 5V 1 Channel Relay Board Module Optocoupler LED For Arduino PIC ARM AVR.H4Opens in a new window or tabBrand NewC $1.74Top Rated SellerTop Rated Sellerha-smile-5 (10,977) 96.5%Free shippingfrom China
- 12V Digital LED Display Delay Timer Control Switch Automation Relay Board ModuleOpens in a new window or tabBrand NewC $6.25 to C $6.79Top Rated SellerTop Rated SellerWas: C $6.95 10% offworldchips (190,287) 99.1%+C $2.72 shippingfrom ChinaFree returns
- 4 Channel 5V Relay Module Shield control board with optocoupler Low LevelOpens in a new window or tabBrand NewC $5.88Top Rated SellerTop Rated Sellerphillipjfry78 (4,527) 100%+C $2.65 shipping
- 1/2/4/8 Channel Relay Board Relay Module w/Optocoupler High Low 5V 9V 12V 24V USOpens in a new window or tabBrand NewC $8.06 to C $15.44Top Rated SellerTop Rated Sellerdiybox (76,979) 98.7%+C $14.84 shippingfrom United States
- F5305S PMOS Trigger Switch Board MOS Field Effect Transistor 3V 5V 12V 24V 36V COpens in a new window or tabBrand NewC $8.19Top Rated SellerTop Rated Sellertopysealler01 (9,582) 95.5%Free shipping
- New 16-Channel 5V12V Relay Module Board For Arduino PIC AVR MCU DSP ARM PLCOpens in a new window or tabBrand NewC $20.40Top Rated SellerTop Rated SellerWas: C $21.46 5% offfairymall06 (20,020) 95.4%Free shippingfrom China
- 16 Channel Relay Module DC5/12V Wifi Relay Onboard ESP8266WIFI Development BoardOpens in a new window or tabBrand NewC $29.78Top Rated SellerTop Rated Sellerworldchips (190,287) 99.1%+C $2.72 shippingfrom ChinaFree returns
- 2 Channel Dual Relay Module 12VDC, SPDT Contact DC 30V 30A or AC 250V Board 12VOpens in a new window or tabBrand NewC $12.30Top Rated SellerTop Rated Seller5y6 (1,717) 98.6%from United States
- 3units! 2 Channel DC 5V Relay Switch Board Module, for Arduino Rberry Pi PIC ARMOpens in a new window or tabBrand NewC $14.36Top Rated SellerTop Rated Sellerallamandi (5,665) 99.1%+C $14.98 shippingfrom United States185 sold
- DC12V/24V Motor Controller Relay Board Forward Reverse Control Limit Start StopOpens in a new window or tabBrand NewC $7.61Top Rated SellerTop Rated SellerWas: C $8.18 7% offczb6721960 (311,107) 99.1%+C $4.79 shippingfrom China
- LAN Ethernet TCP UDP Controller Module Relay Board 2 Channel Use for Android APPOpens in a new window or tabBrand NewC $27.23Top Rated SellerTop Rated Seller14healthday (20,034) 95.6%Free shippingfrom China
- 1/2/4/6/8 Channel 5V Relay Board Module Optocoupler LED for Arduino PiC ARM AVROpens in a new window or tabBrand NewC $1.35 to C $14.06Top Rated SellerTop Rated Sellerxiumeche-0 (33,819) 99.8%+C $3.94 shippingfrom ChinaFree returns
- Smart Battery Charger Power Relay Control Board DC12V Automatic Control BoardOpens in a new window or tabBrand NewC $3.23Top Rated SellerTop Rated SellerWas: C $3.58 10% offsurvy2014 (289,731) 99.7%+C $1.71 shippingfrom ChinaFree returns441 sold
- DC 12V 10A Magnetic Latching Relay Module Bistable Self-locking Flip-Flop BoardOpens in a new window or tabBrand NewC $6.92Top Rated SellerTop Rated SellerWas: C $7.44 7% offczb6721960 (311,107) 99.1%+C $4.09 shippingfrom China
- LAN Ethernet 2 Way Relay Board Delay Switch TCP/UDP Controller Module WEB ServerOpens in a new window or tabBrand NewC $24.86Top Rated SellerTop Rated SellerWas: C $27.32 9% offsatisfyelectronics (217,455) 99.5%+C $1.35 shippingfrom ChinaFree returns
- DC 12V Motor Controller Relay Board Forward Reverse Control Limit Start StopOpens in a new window or tabBrand NewC $7.24Top Rated SellerTop Rated SellerWas: C $8.04 10% offxiumeche-0 (33,819) 99.8%+C $1.35 shippingfrom ChinaFree returns
- 5V 1/2/4/6/8 Channel Relay Board Module Optocoupler LED for Arduino PiC ARM AVROpens in a new window or tabBrand NewC $1.94 to C $21.42Top Rated SellerTop Rated SellerWas: C $2.07 6% offdiybox (76,979) 98.7%+C $4.09 shippingfrom ChinaFree returns384+ sold
- 1 Channel DC 3V Relay Module Optocoupler Single Relay Isolated Control BoardOpens in a new window or tabBrand NewC $5.99Top Rated SellerTop Rated SellerWas: C $6.31 5% offecdiystore (1,015) 99.8%Free shippingfrom China
- Relay Module 1 Channel 12V High Low Level Trigger Module Red Relay Module BoardOpens in a new window or tabBrand NewC $9.33Top Rated SellerTop Rated Seller22newcentury (317,719) 99%+C $8.21 shippingfrom China31 sold
- AC 220V 230V 30A Time Timing Delay Turn On/Off Timer Module Relay Control SwitchOpens in a new window or tabBrand NewC $10.46 to C $10.62Top Rated SellerTop Rated Sellerhello_alian (29,696) 99.4%+C $2.67 shippingfrom ChinaFree returns
- ESP8266 ESP-01 5V WiFi Relay Module Smart Home Phone Remote Control Switch APPOpens in a new window or tabBrand NewC $2.87 to C $5.67Top Rated SellerTop Rated Sellerphillipjfry78 (4,527) 100%+C $2.65 shipping
- AC 110~250V Delay Timer Module LED Display Automation Relay Switch BoardOpens in a new window or tabBrand NewC $9.94Top Rated SellerTop Rated SellerWas: C $11.05 10% offworldchips (190,287) 99.1%+C $2.72 shippingfrom ChinaFree returns
- Keyscan 8-Relay Output Control Relay Board (Access Control) OCB8Opens in a new window or tabPre-OwnedC $82.08cgg1911 (113) 98.7%from United States
- Bulk 20pc 6 Channel 5V Relay Board Module Optocoupler LED for ArduinoOpens in a new window or tabBrand NewC $150.00regsheila (556) 100%Free shipping
- Hobart Board,Relay Assembly,Lxi/Am15 00-892934-00001 -Genuine OEM ReplacementOpens in a new window or tabBrand NewC $547.17resellpro19 (461) 100%+C $56.20 shippingfrom United States
- KY-019 5V One Channel 1 CH Relay Module Board Shield PIC AVR DSP ARM for ArduinoOpens in a new window or tabBrand NewC $1.41Top Rated SellerTop Rated Sellerdigital-factory (1,327) 99.8%Free shippingfrom ChinaFree returns
- 2-Channel 30A Relay Board Module 12V, Output NO/NC 120V, 220V, 277VOpens in a new window or tabBrand NewC $12.27Top Rated SellerTop Rated Seller5y6 (1,717) 98.6%+C $14.91 shippingfrom United States
- DC 12V 2-CH Wireless RF Remote Control Relay Switch Transmitter + Receiver BoardOpens in a new window or tabBrand NewC $3.94 to C $10.79Top Rated SellerTop Rated Sellermotor_studio (1,580) 99.1%+C $2.05 shippingfrom ChinaFree returns
- 1Pcs 1 Channel 5V Relay Module Board Shield with Opto and High/Low Level TriggerOpens in a new window or tabBrand NewC $2.33Top Rated SellerTop Rated SellerWas: C $2.59 10% offgalaxyelectronics2015 (37,367) 99.6%+C $2.60 shippingfrom China116 sold
- 1pcs 1 2 4 8 Channel 5V 12V 24V Relay Module Board High and Low Level TriggerOpens in a new window or tabBrand NewC $5.54 to C $12.35Top Rated SellerTop Rated SellerWas: C $6.39 5% offecdiystore (1,015) 99.8%Free shippingfrom China
- 12V Battery Automatic Charging Controller Module Protection Board Relay SwitchOpens in a new window or tabBrand NewC $6.22Top Rated SellerTop Rated Sellerhello_alian (29,696) 99.4%+C $5.46 shippingfrom ChinaFree returns153 sold
- Ethernet Relay Board Channel Home Assistant Digital Input Smart SwitchOpens in a new window or tabBrand NewC $166.73 to C $336.05Top Rated SellerTop Rated SellerWas: C $373.40 10% offtop1*factory (3,979) 92.9%+C $13.68 shippingfrom China
- Weidmuller RSM-16-FB Relay Board- No BoxOpens in a new window or tabNew (Other)C $371.06Top Rated SellerTop Rated Sellerfreightfinders (15,257) 100%+C $52.38 shippingfrom United States
- DC 6-30V Relay 1 Channel Relay Timer Delay Trigger Cycle Switch Circuit BoardOpens in a new window or tabBrand NewC $17.99Top Rated SellerTop Rated SellerWas: C $19.14 6% offuafymu (491) 97.3%+C $2.72 shippingfrom China
- 1/2/4/6/8/16 Channel 5V Relay Board Module Optocoupler LED For Arduino ARM PICOpens in a new window or tabBrand NewC $1.97 to C $21.48Top Rated SellerTop Rated SellerWas: C $2.52 6% offdiybox (76,979) 98.7%+C $4.09 shippingfrom ChinaFree returns
- Audio Input Signal Selector Relay Board/Signal Switching Amplifier Board + RCAOpens in a new window or tabBrand NewC $16.28Top Rated SellerTop Rated SellerWas: C $18.08 10% offsurvy2014 (289,731) 99.7%+C $1.71 shippingfrom ChinaFree returns67 sold
- ENC28J60 8/16 bit Network Controller Module for Relay Module Board Smart HomeOpens in a new window or tabBrand NewC $7.50 to C $9.89Top Rated SellerTop Rated Selleralice1101983 (569,778) 99.5%+C $3.35 shippingfrom China180+ sold
- 5V Four 4 Channel Relay Module With optocoupler For PIC AVR DSP ARM Arduino NEWOpens in a new window or tabBrand NewC $2.97Top Rated SellerTop Rated SellerWas: C $3.27 9% offsatisfyelectronics (217,455) 99.5%+C $1.35 shippingfrom ChinaFree returns
- 16 Channel I2C Electromagnetic Relay Module for Arduino Raspberry 3.3V 5.0VOpens in a new window or tabBrand NewC $49.18Top Rated SellerTop Rated Sellerbugrovs2012 (3,094) 100%+C $9.51 shippingfrom Latvia76 sold
- 12V Timer Relay Module Delay Off Switch 1-10 sec Control BoardOpens in a new window or tabBrand NewC $9.22Top Rated SellerTop Rated Sellersatisfieddeal (1,688) 98.9%+C $0.67 shippingfrom China
- 380V 8A 1/2/4 Channel Solid State Relay Board SSR Switch Controller For ArduinoOpens in a new window or tabBrand NewC $12.23 to C $27.13Top Rated SellerTop Rated SellerWas: C $13.15 7% offczb6721960 (311,107) 99.1%+C $4.09 shippingfrom China
- 1PCS 16-Channel 5V Relay Shield Module with optocoupler For Arduino NewOpens in a new window or tabBrand NewC $12.68Top Rated SellerTop Rated SellerWas: C $14.09 10% offsurvy2014 (289,731) 99.7%+C $1.71 shippingfrom ChinaFree returns
- 4 Channel Relay Module 1 SPDT DIN Rail Mount 12V 24V DCAC Interface Relay ModuleOpens in a new window or tabBrand NewC $19.10 to C $28.78Top Rated SellerTop Rated SellerWas: C $28.52 5% offgeya-electrical-us (3,694) 99.1%+C $4.58 shippingfrom ChinaFree returns226+ sold
- 4 Channel Relay Control Board Relay Expansion Board for Arduino UNO R3 Mega 2560Opens in a new window or tabBrand NewC $5.23Top Rated SellerTop Rated Sellerzhuzhunv0928 (532) 98.9%+C $4.08 shippingfrom ChinaFree returns
- Audio Input Signal Selector Relay Board/Signal Switching Amplifier Board + RCA LOpens in a new window or tabBrand NewC $18.07Top Rated SellerTop Rated Sellerlovesell2013 (76,896) 99.9%+C $1.35 shippingfrom ChinaFree returns
- DC 12V 5V Relay Delay Power Turn on / Delay Turn off Switch Module Timer VoltOpens in a new window or tabBrand NewC $7.93 to C $20.25Top Rated SellerTop Rated SellerWas: C $8.34 5% offecdiystore (1,015) 99.8%Free shippingfrom China
- 5V Two 2 Channel Relay Module With optocoupler For PIC AVR DSP ARM ArduinoOpens in a new window or tabBrand NewC $1.63Top Rated SellerTop Rated SellerWas: C $1.79 9% offsatisfyelectronics (217,455) 99.5%+C $1.35 shippingfrom ChinaFree returns354 sold
- 5V 1 Channel Relay Board Module Optocoupler LED For Arduino PIC ARM AVR.USHHOpens in a new window or tabBrand NewC $2.31Top Rated SellerTop Rated SellerWas: C $3.08 25% offhmzkfugn-4 (16,085) 98.2%+C $1.37 shippingfrom China57 sold
- 8 Channel 5V USB Relay Board Module Computer PC Smart Control Switch ControllerOpens in a new window or tabBrand NewC $16.22Top Rated SellerTop Rated Sellerworldchips (190,287) 99.1%+C $2.72 shippingfrom ChinaFree returns
- 30A Relay Board Module Optocoupler Isolation High / Low Trigger DC 12V F8Z8Opens in a new window or tabBrand NewC $12.30Top Rated SellerTop Rated Sellereasybuyou (14,014) 98.7%Free shippingfrom China
- AZ942 - 24V 10A MINIATURE PC BOARD RELAY AZ942-1AT-24DEOpens in a new window or tabBrand NewC $1.49Top Rated SellerTop Rated Sellertechno* (21,113) 100%+C $4.00 shipping
- 1/2/4/8ch DC 5V 12V Relay Module Board With Optocoupler 2 4 8 way PLC AutomationOpens in a new window or tabBrand NewC $3.04 to C $9.15Top Rated SellerTop Rated Sellerhengfangsales (12,739) 98.8%+C $1.78 shippingfrom China
- 2-Channel 30A Relay Board Module 12V, Two Circuits SPDT DC 30V, AC 250VOpens in a new window or tabBrand NewC $12.24Top Rated SellerTop Rated Seller5y6 (1,717) 98.6%+C $14.91 shippingfrom United States
- 1 Channel Infrared Switch Relay Driving Module Board 5V Active Remote ControllerOpens in a new window or tabBrand NewC $4.06Top Rated SellerTop Rated SellerWas: C $4.51 10% offsurvy2014 (289,731) 99.7%+C $1.71 shippingfrom ChinaFree returns111 sold
- 6 Channel 5V Relay Board Module Optocoupler LED for Arduino PiC ARM AVR NEWOpens in a new window or tabBrand NewC $6.07Top Rated SellerTop Rated SellerWas: C $6.68 9% offsatisfyelectronics (217,455) 99.5%+C $1.35 shippingfrom ChinaFree returns
- Relay Module Interface Boards for Arduino Low Level Trigger 1/2/4/6/8 ChannelsOpens in a new window or tabBrand NewC $2.82 to C $8.84Top Rated SellerTop Rated Sellergelepinzaa (920) 98.5%+C $3.26 shippingfrom China
- 4-Channel Relay ModuleOpens in a new window or tabBrand NewC $25.50Top Rated SellerTop Rated Sellerzoali91 (262) 100%+C $10.90 shippingfrom United StatesFree returns
- GEYA 8 Channel Interface Relay Module 12V 24V Panel Mount for Automation PLC NEWOpens in a new window or tabBrand NewC $37.96 to C $39.96Top Rated SellerTop Rated SellerWas: C $42.06 5% offgeya-electrical-us (3,694) 99.1%+C $9.18 shippingfrom ChinaFree returns89+ sold
- 5V 2 Channel RS232 DB9 Serial Control Relay Switch Board SCM PC RelaysOpens in a new window or tabBrand NewC $7.04Top Rated SellerTop Rated SellerWas: C $7.92 11% offalice1101983 (569,778) 99.5%+C $3.35 shippingfrom China
- DC Mobile Phone NFC Control Board Fingerprint IC Card DIY Relay Module 13.56mhzOpens in a new window or tabBrand NewC $32.08 to C $60.18Top Rated SellerTop Rated Sellerialotl (66) 98.5%+C $2.74 shippingfrom China
- NEW 30A High Current Contactor Switch 12V Electric Relay Board DC Power ControlOpens in a new window or tabBrand NewC $5.12Top Rated SellerTop Rated SellerWas: C $5.69 10% offxiumeche-0 (33,819) 99.8%+C $3.94 shippingfrom ChinaFree returns184 sold
- KMTronic LAN Ethernet IP 8 channels Relay board WEB BOXOpens in a new window or tabBrand NewC $114.91Top Rated SellerTop Rated Sellerkmtronic2010 (7,027) 100%+C $23.26 shippingfrom Bulgaria639 sold
- Relay Board 845-2721Opens in a new window or tabPre-OwnedC $1,094.36leeentreprises12 (1) 100%from United States
- Genuine Mazak 000000021 Power Relay Board *FROM RUNNING MACHINE*Opens in a new window or tabPre-OwnedC $682.61hintonmachine (457) 100%+C $72.83 shippingfrom United States
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