4 Channel Relay Modules
 |
6 Channel DC 5V Relay Module Expansion Board Optocoupler Insulation for Arduino on E-Bay starting at $5.61
Free Flat Rate Shipping Expedited: No Next Day: No DiyBox Electronic Rating: 98.8% |
 |
4 Channel Remote Switch Wifi Bluetooth Relay Module Built in ESP32S For Android on E-Bay starting at $16.99
Free Flat Rate Shipping Expedited: No Next Day: No 2015allinone Rating: 98.8% |
 |
DC5V 9V 12V 24V 1/2/4/8 Channel High Low Level Relay Module with Optokoppler on E-Bay starting at $1.09
Free Flat Rate Shipping Expedited: No Next Day: No modul_technik Rating: 99.5% |
 |
3V 3.3V 1-channel 2-channel 4-channel Relay Module Low Level Trigger Relay on E-Bay starting at $2.74
Free Flat Rate Shipping Expedited: No Next Day: No SenseCore Rating: 99.5% |
 |
5V / 12V ESP8266 ESP-01 2 /4-Channel WiFi Relay Module For IOT Smart Home APP on E-Bay starting at $4.81
Free Worldwide Shipping Expedited: Yes Next Day: No digital-factory Rating: 99.6% |
 |
12V Relay Module With optocoupler for PIC AVR DSP ARM Arduino 1/2/4/8/16 Channel on E-Bay starting at $2.99
Free Flat Rate Shipping Expedited: No Next Day: No modulesworld2022 Rating: 99.3% |
 |
1/2/4CH Smart WiFi Switch Relay Module Wireless Remote DC 7-32V/AC85-250V 433MHZ on E-Bay starting at $14.59
Free Flat Rate Shipping Expedited: No Next Day: No DiyBox Electronic Rating: 98.8% |
 |
1/2/4/8 Kanal 5v SSR Relais Relay Modul G3MB-202P Solid Für Arduino B3 New on E-Bay starting at $16.11
Free Flat Rate Shipping Expedited: No Next Day: No modul_technik Rating: 99.5% |
 |
5V 1/2/4/8/16 Channel Relay Board Module Optocoupler LED for Arduino PiC ARM AVR on E-Bay starting at $1.39
Free Flat Rate Shipping Expedited: No Next Day: No SenseCore Rating: 99.5% |
 |
DC 5V ESP8266 WIFI 1/2/4 Channels Relay Module ESP-12F Development Board on E-Bay starting at $7.99
Free Flat Rate Shipping Expedited: No Next Day: No DiyBox Electronic Rating: 98.8% |
 |
4 Channel Relay Module ESP32 WiFi Wireless Remote Control 3M for Android no IOS on E-Bay starting at $18.95
Free Worldwide Shipping Expedited: No Next Day: No flyfun_diymall Rating: 99.5% |
 |
5V 4 Channel SSR G3MB-202P Solid State Relay Module with Resistive Fuse on E-Bay starting at $4.56
Free Flat Rate Shipping Expedited: No Next Day: No Satisfy Electronics Rating: 99.6% |
 |
4 Channel WiFi Relay Module Self-lock Inching Smart Switch APP Remote Control on E-Bay starting at $19.87
Free Worldwide Shipping Expedited: No Next Day: No flyfun_diymall Rating: 99.5% |
 |
AC/DC ESP8266 WIFI 4 Channels Relay Module ESP-12F Development Board on E-Bay starting at $9.35
Free Flat Rate Shipping Expedited: No Next Day: No TxHang Electronic Rating: 99.5% |
 |
5V One 1 Channel Relay Module Board Shield For PIC AVR DSP ARM MCU Arduino New on E-Bay starting at $1.83
Free Flat Rate Shipping Expedited: No Next Day: No modul_technik Rating: 99.5% |
 |
40A High Power 2-Channel 4-Way Relay Extension Module DC 5-30V Relay Controller on E-Bay starting at $29.99
Free Worldwide Shipping Expedited: No Next Day: No SZMWKJ Rating: 99.9% |
 |
MICRO USB 5V 2/4/8 Channel USB Control Relay Module 1 Channel 5-30V Delay Relay on E-Bay starting at $1.26
Free Flat Rate Shipping Expedited: No Next Day: No TxHang Electronic Rating: 99.5% |
 |
1/2/4/8 Arduino Pi Channel Relay Board Module Selectable High Low 5V 12V 24V on E-Bay starting at $3.38
Free Flat Rate Shipping Expedited: No Next Day: No Future Mailing Services Rating: 99.9% |
 |
1/2/4 Channel 5v SSR G3MB-202P Solid State Relay Module For Arduino on E-Bay starting at $1.72
Free Flat Rate Shipping Expedited: No Next Day: No TxHang Electronic Rating: 99.5% |
 |
5V 1/2/4/8/16 Channel Relay Board Module Optocoupler LED for Arduino PiC ARM AVR on E-Bay starting at $1.39
Free Flat Rate Shipping Expedited: No Next Day: No modul_technik Rating: 99.5% |
 |
DC 12V 4-Channel Relay Module Optocoupler For Arduino PIC ARM AVR DSP HD23L D on E-Bay starting at $4.48
Free Flat Rate Shipping Expedited: No Next Day: No DiyBox Electronic Rating: 98.8% |
 |
New AC/DC ESP8266 WIFI 4 Channels Relay Module ESP-12F Development Board Module on E-Bay starting at $9.83
Free Flat Rate Shipping Expedited: No Next Day: No modulefans Rating: 99.5% |
 |
5V 4 Channel Relay Module Board Shield For PIC AVR DSP ARM MCU Arduino UNO R3 on E-Bay starting at $5.02
Free Flat Rate Shipping Expedited: No Next Day: No shields-fans Rating: 98.8% |
 |
ESP32S Bluetooth WiFi Relay Module Switch Phone APP Controller Onboard 4 Channel on E-Bay starting at $17.99
Free Worldwide Shipping Expedited: No Next Day: No 2015allinone Rating: 98.8% |
 |
1/2/4/8/16 Channel 12V Relay Module With optocoupler for PIC AVR DSP ARM Arduino on E-Bay starting at $1.43
Free Flat Rate Shipping Expedited: No Next Day: No luckystar666 Rating: 98.7% |
 |
ESP8266 ESP-01 5V/12V 2/4-Channel WiFi Relay Module For IOT Smart Home APP on E-Bay starting at $8.95
Free Flat Rate Shipping Expedited: No Next Day: No luckystar666 Rating: 98.7% |
 |
DC 12V 1/2/4Channel Bluetooth Relay Module APP Control Switch IoT Smart Home on E-Bay starting at $5.41
Free Flat Rate Shipping Expedited: No Next Day: No SenseCore Rating: 99.5% |
 |
5V 12V 24V 30A 4 Channel Relay Module Board High And Low Level Relay Module on E-Bay starting at $11.08
Free Flat Rate Shipping Expedited: No Next Day: No TxHang Electronic Rating: 99.5% |
 |
5V 1/2/4/6/8 Channel Relay Board Module Optocoupler LED for Arduino PiC ARM AVR on E-Bay starting at $8.25
Free Flat Rate Shipping Expedited: No Next Day: No DiyBox Electronic Rating: 98.8% |
 |
Relay 5V - 1, 2 & 4 Channel Relay Module w Optocoupler Relay Output for Arduino on E-Bay starting at $3.25
Free Flat Rate Shipping Expedited: No Next Day: No DoGoods Store Rating: 99.1% |
 |
12V 1/2/4/8/16 Channel Relay Module With optocoupler For PIC AVR DSP ARM Arduino on E-Bay starting at $1.09
Free Flat Rate Shipping Expedited: No Next Day: No SenseCore Rating: 99.5% |
 |
Smart Remote Control Wireless WiFi Switch Relay Module 1/2/4CH DC7-32V/AC85-250V on E-Bay starting at $10.08
Free Flat Rate Shipping Expedited: No Next Day: No AI_Smart_Chips Rating: 99.3% |
 |
12V Relay Module With optocoupler for PIC AVR DSP ARM Arduino 1/2/4/8/16 Channel on E-Bay starting at $11.94
Free Flat Rate Shipping Expedited: No Next Day: No xyz-electronic Rating: 99.1% |
 |
5V / 12V ESP8266 ESP-01 2 /4-Channel WiFi Relay Module For IOT Smart Home APP on E-Bay starting at $7.00
Free Worldwide Shipping Expedited: Yes Next Day: No digital-industry Rating: 99.8% |
 |
4 Four Channel Relay Module DC 5V + Optocoupler For Arduino PIC ARM AVR DSP D on E-Bay starting at $3.15
Free Flat Rate Shipping Expedited: No Next Day: No DiyBox Electronic Rating: 98.8% |
 |
5V/9V/12V/24V 1/2/4 Channel Optocoupler Relay Module For High Low Level Trigger on E-Bay starting at $1.67
Free Flat Rate Shipping Expedited: No Next Day: No DiyBox Electronic Rating: 98.8% |
 |
Relay Module Interface Boards for Arduino Low Level Trigger 1/2/4/6/8 Channels on E-Bay starting at $3.90
Free Worldwide Shipping Expedited: No Next Day: No JIEERSHI Rating: 99.0% |
 |
1PCS 5V 1/2/4/8 Channel Relay Board Module Optocoupler LED for Arduino PiC ARM S on E-Bay starting at $0.99
Free Flat Rate Shipping Expedited: No Next Day: No Satisfy Electronics Rating: 99.6% |
 |
2PCS 12V ESP8266 ESP-01 4 Channel WiFi Relay Module For IOT Phone APP Controller on E-Bay starting at $18.45
Free Flat Rate Shipping Expedited: No Next Day: No supermall9527 Rating: 99.6% |
 |
433MHZ 1/2/4 Channel USB Smart Switch WiFi Relay Module Remote Control App on E-Bay starting at $6.50
Free Flat Rate Shipping Expedited: No Next Day: No supermall9527 Rating: 99.6% |
 |
12V 1/2/4/8/16 Channel Relay Module With optocoupler For AVR DSP ARM Arduino PIC on E-Bay starting at $0.99
Free Flat Rate Shipping Expedited: No Next Day: No Satisfy Electronics Rating: 99.6% |
 |
AC DC ESP32 WIFI Bluetooth 4 Channel Relay Module ESP32-WROOM Development Board on E-Bay starting at $16.38
Free Flat Rate Shipping Expedited: No Next Day: No shields-fans Rating: 98.8% |
 |
2PCS 5V Four 4 Channel Relay Shield Module For PIC AVR DSP ARM MSP430 Arduino on E-Bay starting at $5.72
Free Flat Rate Shipping Expedited: No Next Day: No TxHang Electronic Rating: 99.5% |
 |
5V 1/2/4/8 Channel SSR G3MB-202P Solid State Relay Module For Arduino on E-Bay starting at $1.45
Free Flat Rate Shipping Expedited: No Next Day: No kingelectronics15 Rating: 99.7% |
 |
4 Channel 12V Relay Module with IR Infrared Remote Control Fernbedienung Relais on E-Bay starting at $22.68
Free Flat Rate Shipping Expedited: No Next Day: No hermann_shopp Rating: 99.5% |
 |
1/2/4 Channel USB Smart Switch WiFi Relay Module +433MHZ Remote Control App on E-Bay starting at $6.50
Free Flat Rate Shipping Expedited: No Next Day: No modul_technik Rating: 99.5% |
 |
Modbus Rtu 1/2/4 Channel 7-24V Relay Module Switch input output RS485/TTL UART on E-Bay starting at $3.93
Free Flat Rate Shipping Expedited: No Next Day: No modul_technik Rating: 99.5% |
 |
1/2/4Channel Bluetooth Relay Module APP Control Switch IoT Smart Home DC 5V/12V on E-Bay starting at $3.99
Free Flat Rate Shipping Expedited: No Next Day: No bingospace Rating: 98.5% |
 |
DC 5V ESP8266 WIFI 1/2/4 Channels Relay Module ESP-12F Development Board on E-Bay starting at $10.98
Free Flat Rate Shipping Expedited: No Next Day: No DiyBox Electronic Rating: 98.8% |
 |
3/4 Channel Optocoupler Isolation Opto-isolator High/Low Level Module TLP281 on E-Bay starting at $1.52
Free Flat Rate Shipping Expedited: No Next Day: No TxHang Electronic Rating: 99.5% |
Recent Searches
Affiliate Disclosure: As an Amazon Associate, I earn from qualifying purchases.