![5v Relay Module 1 Channel Relay Board for Raspberry Pi with Opto-Isolated High or Low Level Trigger 5v 1 Channel Relay Switch for Arduino: Amazon.com: Industrial & Scientific 5v Relay Module 1 Channel Relay Board for Raspberry Pi with Opto-Isolated High or Low Level Trigger 5v 1 Channel Relay Switch for Arduino: Amazon.com: Industrial & Scientific](https://m.media-amazon.com/images/I/71aojw7GmKL._AC_UF1000,1000_QL80_.jpg)
5v Relay Module 1 Channel Relay Board for Raspberry Pi with Opto-Isolated High or Low Level Trigger 5v 1 Channel Relay Switch for Arduino: Amazon.com: Industrial & Scientific
![Amazon.com: HiLetgo 2pcs 5V One Channel Relay Module Relay Switch with OPTO Isolation High Low Level Trigger : Industrial & Scientific Amazon.com: HiLetgo 2pcs 5V One Channel Relay Module Relay Switch with OPTO Isolation High Low Level Trigger : Industrial & Scientific](https://m.media-amazon.com/images/I/61Ynyg4Sd8L.jpg)
Amazon.com: HiLetgo 2pcs 5V One Channel Relay Module Relay Switch with OPTO Isolation High Low Level Trigger : Industrial & Scientific
![Amazon.com: Ardest 5v 1 Channel Relay Module for Arduino ARM PIC AVR MCU DSP Raspberry Pi Relay Expansion Board Shield with Indicator LED : Electronics Amazon.com: Ardest 5v 1 Channel Relay Module for Arduino ARM PIC AVR MCU DSP Raspberry Pi Relay Expansion Board Shield with Indicator LED : Electronics](https://m.media-amazon.com/images/I/61kMvQReIdL._AC_UF894,1000_QL80_.jpg)
Amazon.com: Ardest 5v 1 Channel Relay Module for Arduino ARM PIC AVR MCU DSP Raspberry Pi Relay Expansion Board Shield with Indicator LED : Electronics
![Amazon.com: Electronics-Salon 2 DPDT Signal Relay Module Board, DC 12V Version, for Arduino Raspberry-Pi 8051 PIC. : Electronics Amazon.com: Electronics-Salon 2 DPDT Signal Relay Module Board, DC 12V Version, for Arduino Raspberry-Pi 8051 PIC. : Electronics](https://m.media-amazon.com/images/I/71gC98PJ3eL.jpg)
Amazon.com: Electronics-Salon 2 DPDT Signal Relay Module Board, DC 12V Version, for Arduino Raspberry-Pi 8051 PIC. : Electronics
![Onyehn 1 Channel DC 3V Relay High Level Driver Module Optocoupler Relay Module Isolated Drive Control Board for Arduino (Pack of 8): Amazon.com: Industrial & Scientific Onyehn 1 Channel DC 3V Relay High Level Driver Module Optocoupler Relay Module Isolated Drive Control Board for Arduino (Pack of 8): Amazon.com: Industrial & Scientific](https://m.media-amazon.com/images/I/71Ol+rxF4FL._AC_UF1000,1000_QL80_.jpg)
Onyehn 1 Channel DC 3V Relay High Level Driver Module Optocoupler Relay Module Isolated Drive Control Board for Arduino (Pack of 8): Amazon.com: Industrial & Scientific
![SainSmart 5V 2A 4 Channel Solid State Relay Module High Level Trigger Black for Arduino Uno Duemilanove MEGA2560 MEGA1280 ARM DSP PIC: Amazon.com: Industrial & Scientific SainSmart 5V 2A 4 Channel Solid State Relay Module High Level Trigger Black for Arduino Uno Duemilanove MEGA2560 MEGA1280 ARM DSP PIC: Amazon.com: Industrial & Scientific](https://m.media-amazon.com/images/I/51-0ijVYIBL._AC_UF1000,1000_QL80_.jpg)
SainSmart 5V 2A 4 Channel Solid State Relay Module High Level Trigger Black for Arduino Uno Duemilanove MEGA2560 MEGA1280 ARM DSP PIC: Amazon.com: Industrial & Scientific
![Songhe DC 1 Channel Optocoupler 3V/3.3V Relay High Level Driver Module Isolated Drive Control Board 3V/3.3V Relay Module for Arduino (Pack of 5): Amazon.com: Industrial & Scientific Songhe DC 1 Channel Optocoupler 3V/3.3V Relay High Level Driver Module Isolated Drive Control Board 3V/3.3V Relay Module for Arduino (Pack of 5): Amazon.com: Industrial & Scientific](https://m.media-amazon.com/images/I/71vU7NaGpsL._AC_UF1000,1000_QL80_.jpg)
Songhe DC 1 Channel Optocoupler 3V/3.3V Relay High Level Driver Module Isolated Drive Control Board 3V/3.3V Relay Module for Arduino (Pack of 5): Amazon.com: Industrial & Scientific
![Amazon.com: SunFounder 2 Channel DC 5V Relay Module with Optocoupler Low Level Trigger Expansion Board Compatible with Arduino R3 MEGA 2560 1280 DSP ARM PIC AVR STM32 Raspberry Pi : Electronics Amazon.com: SunFounder 2 Channel DC 5V Relay Module with Optocoupler Low Level Trigger Expansion Board Compatible with Arduino R3 MEGA 2560 1280 DSP ARM PIC AVR STM32 Raspberry Pi : Electronics](https://m.media-amazon.com/images/I/41KROIy+uGL.jpg)
Amazon.com: SunFounder 2 Channel DC 5V Relay Module with Optocoupler Low Level Trigger Expansion Board Compatible with Arduino R3 MEGA 2560 1280 DSP ARM PIC AVR STM32 Raspberry Pi : Electronics
![5V LSR Light Sensitive Sensor Relay Light Control Switch Photoresistor Optical Relay Module for Arduino DIY: Amazon.com: Industrial & Scientific 5V LSR Light Sensitive Sensor Relay Light Control Switch Photoresistor Optical Relay Module for Arduino DIY: Amazon.com: Industrial & Scientific](https://m.media-amazon.com/images/I/41ZCDQyTN8L._AC_UF894,1000_QL80_.jpg)
5V LSR Light Sensitive Sensor Relay Light Control Switch Photoresistor Optical Relay Module for Arduino DIY: Amazon.com: Industrial & Scientific
![Amazon.com: Optocoupler-Isolated 2 Channel DC 5V Relay Module for Arduino Raspberry Pi MEGA 2560 DSP AVR PIC ARM MCU STM32, Electronic Experiment, Smart Home, Industrial Control, Robot : Industrial & Scientific Amazon.com: Optocoupler-Isolated 2 Channel DC 5V Relay Module for Arduino Raspberry Pi MEGA 2560 DSP AVR PIC ARM MCU STM32, Electronic Experiment, Smart Home, Industrial Control, Robot : Industrial & Scientific](https://m.media-amazon.com/images/I/51aGvNWCwGL._AC_UF1000,1000_QL80_.jpg)
Amazon.com: Optocoupler-Isolated 2 Channel DC 5V Relay Module for Arduino Raspberry Pi MEGA 2560 DSP AVR PIC ARM MCU STM32, Electronic Experiment, Smart Home, Industrial Control, Robot : Industrial & Scientific
![Amazon.com: JBtek 8 Channel DC 5V Relay Module for Arduino Raspberry Pi DSP AVR PIC ARM : Electronics Amazon.com: JBtek 8 Channel DC 5V Relay Module for Arduino Raspberry Pi DSP AVR PIC ARM : Electronics](https://m.media-amazon.com/images/I/71dSbBDm0PL._AC_UF894,1000_QL80_.jpg)
Amazon.com: JBtek 8 Channel DC 5V Relay Module for Arduino Raspberry Pi DSP AVR PIC ARM : Electronics
![Amazon.com: 4 pcs DC 5V 1 Channel Relay Module Board Shield High/Low Level Trigger with Optocoupler : Industrial & Scientific Amazon.com: 4 pcs DC 5V 1 Channel Relay Module Board Shield High/Low Level Trigger with Optocoupler : Industrial & Scientific](https://m.media-amazon.com/images/I/71aGbUlrehL._AC_UF1000,1000_QL80_.jpg)
Amazon.com: 4 pcs DC 5V 1 Channel Relay Module Board Shield High/Low Level Trigger with Optocoupler : Industrial & Scientific
![Amazon.com: HiLetgo 5V 4 Channel Relay Shield for UNO R3 Relay Shield Four Channel Relay Shield for UNO R3 : Automotive Amazon.com: HiLetgo 5V 4 Channel Relay Shield for UNO R3 Relay Shield Four Channel Relay Shield for UNO R3 : Automotive](https://m.media-amazon.com/images/I/61FfjAPCMlL.jpg)
Amazon.com: HiLetgo 5V 4 Channel Relay Shield for UNO R3 Relay Shield Four Channel Relay Shield for UNO R3 : Automotive
![HiLetgo 2pcs DC 12V 2 Channel Relay Module with Isolated Optocoupler High and Low Level H/L Level Trigger Module Triggered by DC 12V HiLetgo 2pcs DC 12V 2 Channel Relay Module with Isolated Optocoupler High and Low Level H/L Level Trigger Module Triggered by DC 12V](https://m.media-amazon.com/images/I/51pCgr28gSL.jpg)
HiLetgo 2pcs DC 12V 2 Channel Relay Module with Isolated Optocoupler High and Low Level H/L Level Trigger Module Triggered by DC 12V
![1 Channel Relay Shield Module, 10PCS DC 5V Indicator Light LED Module for Arduino R3 MEGA 2560 1280 ARM PIC AVR STM32 Raspberry Pi MCU DSP Official Boards Shield (10PCS): Amazon.com: Industrial 1 Channel Relay Shield Module, 10PCS DC 5V Indicator Light LED Module for Arduino R3 MEGA 2560 1280 ARM PIC AVR STM32 Raspberry Pi MCU DSP Official Boards Shield (10PCS): Amazon.com: Industrial](https://m.media-amazon.com/images/W/IMAGERENDERING_521856-T1/images/I/71lexBCo55S._AC_UF894,1000_QL80_.jpg)
1 Channel Relay Shield Module, 10PCS DC 5V Indicator Light LED Module for Arduino R3 MEGA 2560 1280 ARM PIC AVR STM32 Raspberry Pi MCU DSP Official Boards Shield (10PCS): Amazon.com: Industrial
![Amazon.com: Tolako 5v Relay Module 5V Indicator Light LED 1 Channel Relay Module for Arduino ARM PIC AVR MCU : Industrial & Scientific Amazon.com: Tolako 5v Relay Module 5V Indicator Light LED 1 Channel Relay Module for Arduino ARM PIC AVR MCU : Industrial & Scientific](https://m.media-amazon.com/images/I/51skTYXNy5L.jpg)
Amazon.com: Tolako 5v Relay Module 5V Indicator Light LED 1 Channel Relay Module for Arduino ARM PIC AVR MCU : Industrial & Scientific
![Amazon.com: Tolako 5v Relay Module 5V Indicator Light LED 1 Channel Relay Module for Arduino ARM PIC AVR MCU : Industrial & Scientific Amazon.com: Tolako 5v Relay Module 5V Indicator Light LED 1 Channel Relay Module for Arduino ARM PIC AVR MCU : Industrial & Scientific](https://m.media-amazon.com/images/I/518MyhLt6ML.jpg)
Amazon.com: Tolako 5v Relay Module 5V Indicator Light LED 1 Channel Relay Module for Arduino ARM PIC AVR MCU : Industrial & Scientific
![1 Channel Relay Module Interface Board Shield for Arduino 5V Low Level Trigger One PIC AVR DSP ARM MCU DC AC 220V: Amazon.com: Industrial & Scientific 1 Channel Relay Module Interface Board Shield for Arduino 5V Low Level Trigger One PIC AVR DSP ARM MCU DC AC 220V: Amazon.com: Industrial & Scientific](https://m.media-amazon.com/images/I/61B1SuknxAL.jpg)
1 Channel Relay Module Interface Board Shield for Arduino 5V Low Level Trigger One PIC AVR DSP ARM MCU DC AC 220V: Amazon.com: Industrial & Scientific
![ANMBEST Relay Module with Optocoupler High/Low Level Trigger for Arduino (3, 3V Relay 1 Channel): Amazon.com: Industrial & Scientific ANMBEST Relay Module with Optocoupler High/Low Level Trigger for Arduino (3, 3V Relay 1 Channel): Amazon.com: Industrial & Scientific](https://m.media-amazon.com/images/I/71DPGqiZmJL._AC_UF894,1000_QL80_.jpg)
ANMBEST Relay Module with Optocoupler High/Low Level Trigger for Arduino (3, 3V Relay 1 Channel): Amazon.com: Industrial & Scientific
![Amazon.com: AEDIKO 8 Channel Relay Module DC 5V Relay Board with OPTO-Isolated Support High or Low Level Trigger : Automotive Amazon.com: AEDIKO 8 Channel Relay Module DC 5V Relay Board with OPTO-Isolated Support High or Low Level Trigger : Automotive](https://m.media-amazon.com/images/I/81jrsEVDajL._AC_UF894,1000_QL80_.jpg)
Amazon.com: AEDIKO 8 Channel Relay Module DC 5V Relay Board with OPTO-Isolated Support High or Low Level Trigger : Automotive
![Amazon.com: 8 Channel I2C Interface Bus Solid State Relay Module for Arduino Raspberry PI and All Mic, AC Voltage Frequency Range 50…60Hz, AC Controlling Voltage Range 100…240VAC Long Life Quite Relay : Amazon.com: 8 Channel I2C Interface Bus Solid State Relay Module for Arduino Raspberry PI and All Mic, AC Voltage Frequency Range 50…60Hz, AC Controlling Voltage Range 100…240VAC Long Life Quite Relay :](https://m.media-amazon.com/images/I/616tQxFyDDL._AC_UF894,1000_QL80_.jpg)
Amazon.com: 8 Channel I2C Interface Bus Solid State Relay Module for Arduino Raspberry PI and All Mic, AC Voltage Frequency Range 50…60Hz, AC Controlling Voltage Range 100…240VAC Long Life Quite Relay :
![Amazon.com: ELEGOO 4 Channel DC 5V Relay Module with Optocoupler Compatible with Arduino UNO R3 MEGA 2560 DSP ARM PIC AVR STM32 Raspberry Pi : Electronics Amazon.com: ELEGOO 4 Channel DC 5V Relay Module with Optocoupler Compatible with Arduino UNO R3 MEGA 2560 DSP ARM PIC AVR STM32 Raspberry Pi : Electronics](https://m.media-amazon.com/images/I/71-LmPoCd9L._AC_UF894,1000_QL80_.jpg)
Amazon.com: ELEGOO 4 Channel DC 5V Relay Module with Optocoupler Compatible with Arduino UNO R3 MEGA 2560 DSP ARM PIC AVR STM32 Raspberry Pi : Electronics
![Amazon.com: AC100V-250V 30A High Power 2-Channel Relay High Current DC5V High-Low Level Trigger Switch Module for Arduino : Electronics Amazon.com: AC100V-250V 30A High Power 2-Channel Relay High Current DC5V High-Low Level Trigger Switch Module for Arduino : Electronics](https://m.media-amazon.com/images/I/71VOALHOgiL._AC_UF1000,1000_QL80_.jpg)