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Relay Modules/ Shields

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RM-4-12V, 4 Channel 12V Relay Module
US$11.60
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RM-1-ESP32-5V, 1-Channel ESP32 WIFI Bluetooth-compatible BLE Relay Module AC90-250V/DC5-30V ESP32-WROOM Development Board
US$20.70
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RM-1-ESP32-5V-USB, 1-Channel ESP32 WIFI Bluetooth-compatible BLE Relay Micro-USB Module AC90-250V/DC5-60V ESP32-WROOM Development Board
US$19.79
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RM-2-ESP32-5V, 2-Channel ESP32 WIFI Bluetooth-compatible BLE Relay Module AC90-250V/DC5-30V ESP32-WROOM Development Board
US$22.52
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RM-4-ESP32-5V, 4-Channel ESP32 WIFI Bluetooth-compatible BLE Relay Module 220VAC/DC5-30V ESP32-WROOM Development Board
US$31.62
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RM-8-ESP32-5V, 8-Channel ESP32 WIFI Bluetooth-compatible BLE Relay Module AC90-250V/DC5-30V ESP32-WROOM Development Board
US$35.26
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RM-1-24V30A, 30A 24V Single Channel 24V RELAY MODULE 30AMP
US$6.93
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RM-1-12V30A, 30A 12V Power Relay Module With Optocoupler Isolation H/L Level Trigger for Arduino Relays
US$6.93
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RM-1-24V-T, Single Isolated 24V Relay High-Low Trigger Module-10A
US$4.50
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RM-1-24V-XH-M118, XH-M118 Relay Module 24V Isolated Sensor, 1 N.O./1 N.C., 10A- 150mm JST cable
US$4.32
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RM-1-12V-XH-M118, XH-M118 Relay Module 12V Isolated Sensor, 1 N.O./1 N.C., 10A- 150mm JST cable
US$4.32
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RM-1-5V-XH-M118, XH-M118 Relay Module 5V Isolated Sensor, 1 N.O./1 N.C., 10A- 150mm JST cable
US$4.32
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RM-1-3.3V-T, Single Isolated 3.3V Relay High-Low Trigger Module-10A
US$4.50
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RM-1-5V-T, Single Isolated 5V Relay High-Low Trigger Module-10A
US$4.50
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RM-1-12V-T, Single Isolated 12V Relay High-Low Trigger Module-10A
US$4.50
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RM-1-3V-I, Single Isolated 3.3V Relay Driver Controller Module-10A
US$4.32
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RM-16-12V Channel Relay Module, 12V with Optocoupler LM2576 Microcontrollers Interface
US$27.93
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WAVE-24964 8-ch Ethernet Relay Module, Modbus RTU/Modbus TCP Protocol, PoE port Communication, With Various Isolation And Protection Circuits
US$62.56
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WAVE-25140 Modbus RTU 32-Ch Relay Module, RS485 Interface, With Multiple Isolation Protection Circuits
US$90.77
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WAVE-24921 Modbus RTU 16-Ch Relay Module, RS485 Interface, With Multiple Isolation Protection Circuits
US$71.39
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RM-1-24V-L 1 Channel 24VDC Latching Trigger Relay Module 
US$8.87
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RM-1-12V-L 1 Channel 12VDC Latching Trigger Relay Module 
US$8.87
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GK-AMO-SSR-1 One Channel Single Solid State Relay Module for 5V Microcontrollers
US$6.32
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GK-RMO-4C-5V geeekus 4-channel 5V Relay Module
US$13.42
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RM-4-ESP-12, 4-Channel Relay Module with ESP8266 (12V Relay Coil)
US$24.95
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RM-2-ESP, ESP8266 Wireless Two Channel Relay Breakout Board, 5VDC
US$13.60
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RM-1-ESP, ESP8266 Wireless Single Channel Relay Breakout Board, 5VDC
US$9.05
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RM-1-HWCT, Single Channel Relay Module with HWCT004 Microprecision 50A Current Detection Transformer
US$27.07
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RM-1A-B Bluetooth Controlled One Channel Relay
US$12.51
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RM-2A-B Bluetooth Controlled Two Channel Relay
US$14.33
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RM-1-BS , Self-Locking Bistable Relay Module
US$5.41
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FIT0827, Industrial 4-Channel Relay Module
US$54.75
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WAVE-20218, Industrial 8-Channel Relay Module for Raspberry Pi Pico, Multi Protection
US$26.16
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LR20IL Lora Relay 30A 915MHz
US$22.52
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MOD-SNUBBER 5-400V DC/DC Resistor/Capacitor Absorption/Snubber Circuit Module
US$2.95
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MABRELAY, Mabee_Relay 10A
US$4.05
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RM-XY-DJ01 Digital Display 1-Way Relay Module Delay Power Off
US$27.25
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Gravity: Easy Relay Module
US$14.00
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RM-1-ESP12, ESP12F + One Channel Relay Module for IOT(ESP8266)
US$18.15
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1-Channel Relay Module-10A
US$3.63
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4 Relay Module 30A
US$21.61
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2 Relay Module 30A
US$11.88
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RM-8-SS 5V 8 Channel Low-Level Solid State Relay Module
US$19.79
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24V Dual Relay Timer Module
US$27.25
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12V Dual Relay Timer Module
US$27.25
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5V Dual Relay Timer Module
US$27.25
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Wireless Wi-Fi Single Channel Relay Module
US$19.95
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8 Channel 24V Relay Module 10A USB
US$29.95
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FRM04 4 Relay Timer Module
US$44.95
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FRM03 3 Relay Timer Module
US$34.95
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8 Channel 12V Relay Module 10A USB
US$29.95
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8 Channel 5V Relay Module 10A USB
US$29.95
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4 Channel 24V Relay Module 10A USB
US$19.95
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4 Channel 12V Relay Module 10A USB
US$19.95
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4 Channel 5V Relay Module 10A USB
US$19.95
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FRM01 1-Channel Multi-function Relay Module
US$13.99
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One Channel Relay Module for 5VDC Microcontrollers with optocoupler
US$5.50
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30V 161A MOSFET Isolation module for Arduino LR7843
US$3.07
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OCTOPUS 1Channel Relay
US$6.29
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RM-XH-M131-5V, 5VDC Photosensitive 1-Channel Relay Module
US$4.49
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RM-52-12V, 12VDC Rain Water/Water Level Relay Switch board
US$6.99
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RM-21-12V, 12VDC Soil Moisture Sensor with Relay Module
US$6.99
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RM-52-5V 5VDC Rain Water Sensor Module Relay
US$6.99
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RM-XH-M131-12V, 12VDC Photosensitive 1-Channel Relay Module
US$5.49
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RM-1-5V-L 1 Channel 5VDC Latching Trigger Relay Module 
US$8.87
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RM-1-5V30A 5VDC 30A Relay Module - 1 Channel
US$6.93
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5VDC 20A 2 Channel Relay Module Expansion Board
US$13.42
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RM-4-ESP 4-Channel Relay Module with ESP8266, 5V
US$24.95
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RM-4-B Bluetooth Controlled Four Channel Relay
US$39.94
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RM-2-B Bluetooth Controlled Two Channel Relay
US$27.93
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WIFI-ESP8266-R ESP8266 WIFI Microcontroller with 120VAC 12A Relay Module
US$11.19
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MOD-150 5A 12VAC Circuit over load protection Relay module
US$13.13
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RM-2-USB 2 Channel Relay Module USB Programmable
US$9.94
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WL-60 8m 12V Self-locking Single Channel Remote Control IR Relay Module
US$9.05
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RM-XH-M138 120VAC 30A High Current Dual Output Relay Controller Board with 12VDC Logic
US$12.59
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AM-124 Reed Switch Module for 5v Microcontrollers
US$3.07
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AM-133, One Channel Relay Module for 5vdc Microcontrollers
US$3.99
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RM-16 Channel Relay Module, 5V
US$27.93
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RM-1 ONE CHANNEL RELAY MODULE 5V
US$4.09
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VEL-VM204 ETHERNET RELAY CARD
US$152.25
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RM-1-SS One Channel Single Solid State Relay Module
US$6.14
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RM-4-SS 4 CHANNEL SOLID STATE RELAY MODULE
US$20.72
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RM-2-SS TWO WAY SOLID STATE RELAY MODULE
US$12.51
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RM-2 Two Channel Relay Module
US$5.23
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WL-90 WIRELESS REMOTE CONTROL SINGLE CHANNEL
US$13.93
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5V 4 Channel Relay Module for Micro-controllers, Raspberry Pi, Arduino
US$11.60
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RM-8 Channel 5V Relay Module Board for Arduino Raspberry Pi PIC AVR
US$17.18
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IM120417022 ITEAD IS SHIELD
US$19.53
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DFR0251 16A Relay Module (Arduino Compatible)
US$20.93
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DFR0105 Power Shield (Arduino Compatible)
US$34.93
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2483-POLOLU Basic SPDT Relay Carrier with 12VDC Relay (Partial Kit)
US$6.94
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2481-POLOLU Basic SPDT Relay Carrier with 5VDC Relay (Partial Kit)
US$6.94
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DFR0144 Relay Shield for Arduino
US$26.25
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DFR0205 DC-DC Power Module 25W
US$14.88
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DFR0017 Gravity: Digital 5A Relay Module
US$5.98
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DEV-10618 Power Driver Shield Kit
US$34.73
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