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10pcs 1 Channel 5V 12V 24V Relay Module Board Shield With Optocoupler Support High and Low Level Trigger Relays For arduino

1-10Pcs 1 2 4 8 Channel 5V DC Relay Module Solid State High Level SSR AVR DSP G3MB-202P Relay for arduino

WiFi Relay Module ESP8266 ESP-01S 5V, Remote Control Switch for Smart Home, for Arduino Phone Application, Wireless WiFi Module

LILYGO® T-Relay ESP32 5V Relay Module 8 Channel With Optocoupler Isolation Wireless Development Board WIFI Bluetooth For Arduino

DIY Automatic Irrigation System Self Watering DIY Kit Garden Greenhouse Flower Water Pump Soil Moisture Sensor Relay Module

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10pcs G3MB-202P 5V DC 1 Channel Solid-State Relay Board Module For Arduino High Low Level Fuse For Arduino SSR G3MB-202P

5V 12V 16 Channel Relay Module Interface Board For Arduino PIC ARM DSP PLC With Optocoupler Protection LM2576 Power 16Channel

G3MB-202P Solid State Relay Module 240V 2A Output High/Low Relay 5 12V 1 Channel 2 4 6 8 Way SSR with Resistive Fuse For Arduino

2 Channel DC 5V Relay Module Low Level Trigger with Optocoupler Isolation Smart Home Control Board Compatible with Arduino ESP32

5V 1/2/4/6/8 Channel Solid State Relay Module Hight / Low Level SSR G3MB-202P 240V 2A Output with Resistive Fuse For Arduino

BS 8 Channel 5V Low Level SSR Relay Module G3MB-202P Solid State Switch Board for Arduino AVR DSP

2 Channel Relay Module 5V 10A Optocoupler Isolation Suitable for Arduino DIY Projects

8PCS DC 5v 1 Channel Relay Module Shield for Raspberry Pi with Optocoupler Support High and Low Level Trigger for Arduino

ESP32‑S3 N16R8 WiFi BT Single‑Channel Relay Module Development Board DC5‑60V Compatible with ESP‑IDF for Arduino IDE ESP32 S3

8 Channel 12V 24V Relay Shield Module RS485 PLC IO Expanding Board For Arduino NANO V3.0

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SunFounder 4 Channel 5V Relay Shield Module for Arduino UNO R3 MEGA 2560 1280 DSP ARM PIC AVR STM32 Raspberry Pi

5PCS 1 Channel 5V Relay Module SRD-05VDC-SL-C Low Level Trigger for Arduino PIC AVR Smart Home DIY Projects

LILYGO® T-Relay 5V 8 Channel Relay Module ESP32 Wireless Development Board WIFI Bluetooth With Optocoupler Isolation For Arduino

G3MB-202P Solid State Relay Module 240V 2A Output High/Low Relay 5 12V 1 Channel 2 4 6 8 Way SSR with Resistive Fuse For Arduino

10pcs 5V 2 Channel Relay Module Low Level Triggered 2-Way 2CH Relay Module Optocoupler Expansion for Arduino ARM PIC AVR DSP

5V 12V 16 Channel Relay Module Interface Board For Arduino PIC ARM DSP PLC With Optocoupler Protection LM2576 Power

1PCS DC 5V 12V 24V 8 Channel Relay Module Board Shield with Optocoupler / High and Low Level Trigger for Arduino Raspberry Pi

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Keyestudio High Level 4 Channel 5V Relay Shield Module with LED Pilot Lamp For Arduino UNO R3 For High Current Device Control

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8 Channel 12V 24V Relay Shield Module RS485 PLC IO Expanding Board For Arduino NANO V3.0

5V 12V 24V 1 2 4 6 8 Channel Relay Module Board Shield with Optocoupler Support High and Low Level Trigger for Arduino

16 Channel Relay Shield Module DC 5V 12V 24V with Optocoupler LM2576 Microcontrollers Interface Power Relay For Arduino DIY Kit

10-1 PCS,3.3V 5v 12V 24V 1 2 4 8 Channel Relay Module With Optocoupler. Output X Way for Arduino 1CH 2CH 4CH 8CH

5V 2 Channel Relay Module with Optocoupler Isolation Compatible Arduino ESP32 Raspberry Pi PLC DIY Projects 1/5/10 PCS

Keyestudio 4 channel 5V Relay Shield Module for Arduino UNO R3

5V 2 Channel Relay Module with Optocoupler Isolation Compatible Arduino ESP32 Raspberry Pi PLC DIY Projects

10pcs KY-019 5V One 1 Channel Relay Module Board Shield For PIC AVR DSP ARM For Arduino 1 Way Relays

10pcs 2 Channel DC 5V 12V 24V Relay Module With Optocoupler Low Level Trigger Expansion Board For Arduino 2 Way Relays Board