![Amazon.com: Nowepai 10Pcs PCB Power Relay Coil DPDT DC 5V 8 Pins Micro Relay PCB Relay HK19F-5V, Yellow : Industrial & Scientific Amazon.com: Nowepai 10Pcs PCB Power Relay Coil DPDT DC 5V 8 Pins Micro Relay PCB Relay HK19F-5V, Yellow : Industrial & Scientific](https://m.media-amazon.com/images/I/61YOqXlvtKL._SX342_.jpg)
Amazon.com: Nowepai 10Pcs PCB Power Relay Coil DPDT DC 5V 8 Pins Micro Relay PCB Relay HK19F-5V, Yellow : 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_SY355_.jpg)
Amazon.com: JBtek 8 Channel DC 5V Relay Module for Arduino Raspberry Pi DSP AVR PIC ARM : Electronics
![Amazon.com: ACEIRMC 2pcs DC 6-30V Timer Relay Programmable Delay Relay Module Cycle Timer with LCD Display / 5V Micro USB, Smart Home Controller : Appliances Amazon.com: ACEIRMC 2pcs DC 6-30V Timer Relay Programmable Delay Relay Module Cycle Timer with LCD Display / 5V Micro USB, Smart Home Controller : Appliances](https://m.media-amazon.com/images/I/815CE49p4hS._AC_SY355_.jpg)
Amazon.com: ACEIRMC 2pcs DC 6-30V Timer Relay Programmable Delay Relay Module Cycle Timer with LCD Display / 5V Micro USB, Smart Home Controller : Appliances
![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._AC_SL1100_.jpg)
Amazon.com: HiLetgo 2pcs 5V One Channel Relay Module Relay Switch with OPTO Isolation High Low Level Trigger : Industrial & Scientific
![Amazon.com: Relay Module, DC 5V-36V Timer Switch Module Trigger Cycle Delay Timer Switch for DC Motors, Lights, LED Strips, Micro-Pumps, Solenoid Valves, etc : Industrial & Scientific Amazon.com: Relay Module, DC 5V-36V Timer Switch Module Trigger Cycle Delay Timer Switch for DC Motors, Lights, LED Strips, Micro-Pumps, Solenoid Valves, etc : Industrial & Scientific](https://m.media-amazon.com/images/I/61wysKik0bL._SX342_.jpg)
Amazon.com: Relay Module, DC 5V-36V Timer Switch Module Trigger Cycle Delay Timer Switch for DC Motors, Lights, LED Strips, Micro-Pumps, Solenoid Valves, etc : Industrial & Scientific
![Amazon.com: Weewooday 15 Pieces 5V Relay Module 1- Channel Relay Control Boards with Optocoupler Isolation High and Low Level Trigger Expansion Board : Industrial & Scientific Amazon.com: Weewooday 15 Pieces 5V Relay Module 1- Channel Relay Control Boards with Optocoupler Isolation High and Low Level Trigger Expansion Board : Industrial & Scientific](https://m.media-amazon.com/images/I/81UwS3jrInL._AC_SS450_.jpg)
Amazon.com: Weewooday 15 Pieces 5V Relay Module 1- Channel Relay Control Boards with Optocoupler Isolation High and Low Level Trigger Expansion Board : Industrial & Scientific
![DZS Elec DC 5V/12V 1 Channel Relay Board Programmable Multifunctional Module Cycle Timing Circuit Switch Cycle Timer Delay Trigger/Disconnect Module: Amazon.com: Industrial & Scientific DZS Elec DC 5V/12V 1 Channel Relay Board Programmable Multifunctional Module Cycle Timing Circuit Switch Cycle Timer Delay Trigger/Disconnect Module: Amazon.com: Industrial & Scientific](https://m.media-amazon.com/images/I/512IU8ZsoiL._SX342_.jpg)
DZS Elec DC 5V/12V 1 Channel Relay Board Programmable Multifunctional Module Cycle Timing Circuit Switch Cycle Timer Delay Trigger/Disconnect Module: Amazon.com: Industrial & Scientific
![QWORK Time Delay Relay, Relay Module DC 6-30V Delay-Off Cycle Timer, 0.01s-9999mins Adjustable Trigger Delay Switch Control with LCD Display Support Micro USB 5V Power Supply: Amazon.com: Tools & Home Improvement QWORK Time Delay Relay, Relay Module DC 6-30V Delay-Off Cycle Timer, 0.01s-9999mins Adjustable Trigger Delay Switch Control with LCD Display Support Micro USB 5V Power Supply: Amazon.com: Tools & Home Improvement](https://m.media-amazon.com/images/I/71qxFoKAFgL._SX466_.jpg)
QWORK Time Delay Relay, Relay Module DC 6-30V Delay-Off Cycle Timer, 0.01s-9999mins Adjustable Trigger Delay Switch Control with LCD Display Support Micro USB 5V Power Supply: Amazon.com: Tools & Home Improvement
![Amazon.com: 8 Channel 5V Relay Shield Opto-couple For Arduino UNO MEGA2560 R3 AVR Robot : Video Games Amazon.com: 8 Channel 5V Relay Shield Opto-couple For Arduino UNO MEGA2560 R3 AVR Robot : Video Games](https://m.media-amazon.com/images/I/71btK85UYEL._AC_SY450_.jpg)
Amazon.com: 8 Channel 5V Relay Shield Opto-couple For Arduino UNO MEGA2560 R3 AVR Robot : Video Games
![Geekstory 5PCS 2 Channel 5V Relay Module 10A with Optocoupler Low Level Trigger Expansion Board for Arduino R3 MEGA 2560 1280 DSP ARM PIC AVR DSP Electronic STM32 Raspberry Pi - - Amazon.com Geekstory 5PCS 2 Channel 5V Relay Module 10A with Optocoupler Low Level Trigger Expansion Board for Arduino R3 MEGA 2560 1280 DSP ARM PIC AVR DSP Electronic STM32 Raspberry Pi - - Amazon.com](https://m.media-amazon.com/images/I/61Fz8u7HwKL._AC_SL1001_.jpg)
Geekstory 5PCS 2 Channel 5V Relay Module 10A with Optocoupler Low Level Trigger Expansion Board for Arduino R3 MEGA 2560 1280 DSP ARM PIC AVR DSP Electronic STM32 Raspberry Pi - - Amazon.com
![Amazon.com: Lystin 8 Channel DC 5V DC 230V Relay Module Control Board with Optocoupler for UNO R3 MEGA 2560 1280 DSP ARM PIC AVR TTL Logic STM32 Raspberry Pi : Electronics Amazon.com: Lystin 8 Channel DC 5V DC 230V Relay Module Control Board with Optocoupler for UNO R3 MEGA 2560 1280 DSP ARM PIC AVR TTL Logic STM32 Raspberry Pi : Electronics](https://m.media-amazon.com/images/I/71yA-+geRfL._AC_SY450_.jpg)
Amazon.com: Lystin 8 Channel DC 5V DC 230V Relay Module Control Board with Optocoupler for UNO R3 MEGA 2560 1280 DSP ARM PIC AVR TTL Logic STM32 Raspberry Pi : Electronics
![Gikfun DV 6V~30V Multifunction Trigger Delay Time Module Switch Control Timer Relay Digit LED Display Micro USB 5V for Arduino EK1945 - - Amazon.com Gikfun DV 6V~30V Multifunction Trigger Delay Time Module Switch Control Timer Relay Digit LED Display Micro USB 5V for Arduino EK1945 - - Amazon.com](https://m.media-amazon.com/images/I/71c911fe9PL._AC_SS450_.jpg)
Gikfun DV 6V~30V Multifunction Trigger Delay Time Module Switch Control Timer Relay Digit LED Display Micro USB 5V for Arduino EK1945 - - Amazon.com
![Amazon.com: 1 Channel Relay Module With Optocoupler 5V Low Level Trigger Relay Expansion Board For Arduino UNO R3 DSP ARM PIC AVR STM32 Raspberry Pi : Electronics Amazon.com: 1 Channel Relay Module With Optocoupler 5V Low Level Trigger Relay Expansion Board For Arduino UNO R3 DSP ARM PIC AVR STM32 Raspberry Pi : Electronics](https://m.media-amazon.com/images/I/51kcEjcOl1L._AC_SY450_.jpg)
Amazon.com: 1 Channel Relay Module With Optocoupler 5V Low Level Trigger Relay Expansion Board For Arduino UNO R3 DSP ARM PIC AVR STM32 Raspberry Pi : Electronics
![Amazon.com: KEYESTUDIO 4 Channel Relay Shield 5V for Arduino Controller R3 ARM PIC AVR STM32 Raspberry Pi HIGH Level Trigger Relay Module Expansion Board : Electronics Amazon.com: KEYESTUDIO 4 Channel Relay Shield 5V for Arduino Controller R3 ARM PIC AVR STM32 Raspberry Pi HIGH Level Trigger Relay Module Expansion Board : Electronics](https://m.media-amazon.com/images/I/61K+1sKIngL._AC_SY450_.jpg)
Amazon.com: KEYESTUDIO 4 Channel Relay Shield 5V for Arduino Controller R3 ARM PIC AVR STM32 Raspberry Pi HIGH Level Trigger Relay Module Expansion Board : Electronics
![Remote Control Relay Switch 12V 433Mhz Remote Transmitter and Receiver, DC 5V 6V 9V 12V Wireless Momentary Switch for Wireless Control - - Amazon.com Remote Control Relay Switch 12V 433Mhz Remote Transmitter and Receiver, DC 5V 6V 9V 12V Wireless Momentary Switch for Wireless Control - - Amazon.com](https://m.media-amazon.com/images/I/61Z1XW-8zkL._AC_SS450_.jpg)
Remote Control Relay Switch 12V 433Mhz Remote Transmitter and Receiver, DC 5V 6V 9V 12V Wireless Momentary Switch for Wireless Control - - Amazon.com
![Tnisesm/6pcs DC 5V Coil SPDT PCB Relay 5 Pins Mini Power Relay T73-5P-5V-BK: Amazon.com: Industrial & Scientific Tnisesm/6pcs DC 5V Coil SPDT PCB Relay 5 Pins Mini Power Relay T73-5P-5V-BK: Amazon.com: Industrial & Scientific](https://m.media-amazon.com/images/I/61QZ4pXqAVS._SX342_.jpg)
Tnisesm/6pcs DC 5V Coil SPDT PCB Relay 5 Pins Mini Power Relay T73-5P-5V-BK: Amazon.com: Industrial & Scientific
![NOYITO 1 Channel Relay Module with Isolated Optocoupler 5V 12V 24V High Low Level Trigger Module Triggered (Pack of 3) (5V, Red): Amazon.com: Industrial & Scientific NOYITO 1 Channel Relay Module with Isolated Optocoupler 5V 12V 24V High Low Level Trigger Module Triggered (Pack of 3) (5V, Red): Amazon.com: Industrial & Scientific](https://m.media-amazon.com/images/I/81-j7-RH1yL._SX522_.jpg)
NOYITO 1 Channel Relay Module with Isolated Optocoupler 5V 12V 24V High Low Level Trigger Module Triggered (Pack of 3) (5V, Red): Amazon.com: Industrial & Scientific
![Amazon.com: YWBL-WH Adjustable Cycle Timer Delay Module, DC 5V 12V 24V On/Off Switch Relay Module for Machine Repetitive Test : Industrial & Scientific Amazon.com: YWBL-WH Adjustable Cycle Timer Delay Module, DC 5V 12V 24V On/Off Switch Relay Module for Machine Repetitive Test : Industrial & Scientific](https://m.media-amazon.com/images/I/41c73RLyLvL._AC_SX466_.jpg)
Amazon.com: YWBL-WH Adjustable Cycle Timer Delay Module, DC 5V 12V 24V On/Off Switch Relay Module for Machine Repetitive Test : Industrial & Scientific
![Amazon.com: DAOKI 5 PCS 5v Relay Module for Arduino ARM PIC AVR MCU 5V Indicator Light LED 1 Channel Relay Module Works with Official Arduino Boards : Industrial & Scientific Amazon.com: DAOKI 5 PCS 5v Relay Module for Arduino ARM PIC AVR MCU 5V Indicator Light LED 1 Channel Relay Module Works with Official Arduino Boards : Industrial & Scientific](https://m.media-amazon.com/images/I/519bMKdd-0L._SX342_.jpg)
Amazon.com: DAOKI 5 PCS 5v Relay Module for Arduino ARM PIC AVR MCU 5V Indicator Light LED 1 Channel Relay Module Works with Official Arduino Boards : Industrial & Scientific
![ZYAMY DC 5V 4 Channel Relay Module for Home Intelligent Control and PLC Control with Optocoupler 5V Low Level Trigger Extension Board: Amazon.com: Industrial & Scientific ZYAMY DC 5V 4 Channel Relay Module for Home Intelligent Control and PLC Control with Optocoupler 5V Low Level Trigger Extension Board: Amazon.com: Industrial & Scientific](https://m.media-amazon.com/images/I/71nYpp56HZL._AC_SX466_.jpg)
ZYAMY DC 5V 4 Channel Relay Module for Home Intelligent Control and PLC Control with Optocoupler 5V Low Level Trigger Extension Board: Amazon.com: Industrial & Scientific
![Amazon.com: Tolako 5v Relay Module 5V Indicator Light LED 1 Channel Relay Module for Arduino ARM PIC AVR MCU : Tools & Home Improvement Amazon.com: Tolako 5v Relay Module 5V Indicator Light LED 1 Channel Relay Module for Arduino ARM PIC AVR MCU : Tools & Home Improvement](https://m.media-amazon.com/images/I/51skTYXNy5L._AC_SX569_.jpg)
Amazon.com: Tolako 5v Relay Module 5V Indicator Light LED 1 Channel Relay Module for Arduino ARM PIC AVR MCU : Tools & Home Improvement
![DC 3.3V 3.5V 3.7V 5V 12V 1A Micro Wireless Remote Control Relay Switch Momentary Low Wide Voltage Load Waterproof Controller Power Button ON Off Receiver 433MHz (Mometary 433MHz) - - Amazon.com DC 3.3V 3.5V 3.7V 5V 12V 1A Micro Wireless Remote Control Relay Switch Momentary Low Wide Voltage Load Waterproof Controller Power Button ON Off Receiver 433MHz (Mometary 433MHz) - - Amazon.com](https://m.media-amazon.com/images/I/51w7wvWsguS._AC_SY355_.jpg)
DC 3.3V 3.5V 3.7V 5V 12V 1A Micro Wireless Remote Control Relay Switch Momentary Low Wide Voltage Load Waterproof Controller Power Button ON Off Receiver 433MHz (Mometary 433MHz) - - Amazon.com
![Amazon.com: Yizhet 8 Channel DC 5V DC 230V Relay Shield Module Control Board with Optocoupler for Raspberry Pi DSP AR PIC ARM TTL Logic (5V 8 Channels) : Electronics Amazon.com: Yizhet 8 Channel DC 5V DC 230V Relay Shield Module Control Board with Optocoupler for Raspberry Pi DSP AR PIC ARM TTL Logic (5V 8 Channels) : Electronics](https://m.media-amazon.com/images/I/613ZY40ecML._SL1000_.jpg)
Amazon.com: Yizhet 8 Channel DC 5V DC 230V Relay Shield Module Control Board with Optocoupler for Raspberry Pi DSP AR PIC ARM TTL Logic (5V 8 Channels) : Electronics
![Amazon.com: Huayao 2pcs 8 Channel DC 5V Relay Module with Optocoupler for UNO R3 MEGA 2560 1280 DSP ARM PIC AVR STM32 Raspberry Pi : Electronics Amazon.com: Huayao 2pcs 8 Channel DC 5V Relay Module with Optocoupler for UNO R3 MEGA 2560 1280 DSP ARM PIC AVR STM32 Raspberry Pi : Electronics](https://m.media-amazon.com/images/I/5185U154TxL._AC_SX450_.jpg)
Amazon.com: Huayao 2pcs 8 Channel DC 5V Relay Module with Optocoupler for UNO R3 MEGA 2560 1280 DSP ARM PIC AVR STM32 Raspberry Pi : Electronics
![DZS Elec 2pcs 2 Channel Relay Module with Optocoupler 5V Active Low Level Amplifier Trigger JD-VCC Relay Power VCC Power: Amazon.com: Industrial & Scientific DZS Elec 2pcs 2 Channel Relay Module with Optocoupler 5V Active Low Level Amplifier Trigger JD-VCC Relay Power VCC Power: Amazon.com: Industrial & Scientific](https://m.media-amazon.com/images/I/511hhYS+5pL._AC_SX466_.jpg)