PC817 Arduino 2 4 8 Channel Channel Channel Optocoupler Photocoupler Optoisolator Module
EUR 3.34 to EUR 6.87
Relais Module
2pcs Songle SRD Print Relay 3V 5V 6V 9V 12V 24V 48V DC Coil Voltage 5 Pin
EUR 3.32
G3MB-202P Semiconductor Solid State Relay 2A 240VAC 50/60Hz 5V 12V 24V Input In
EUR 3.32
JRC-21F 4100 3V Print Relay Miniature Relay 6 Pin
EUR 2.19
TLP281-4 4 Channel Channel Optocoupler Photocoupler Optoisolator High Low Level Ar
EUR 3.47
5-30V Smart Forward Caster Signal Trigger Delay Loop Multi Mode Relay Module
EUR 6.87
Arduino 2 Channel Channel Relay Module 5V 12V Optocoupler Trigger ESP8266
EUR 4.72 to EUR 4.75
2 Channel Relay Module 5V 12V Universal Relay High/Low Level Optocoupler Trigger
EUR 4.63
Arduino ESP8266 1 Channel/Channel 5V or 12V Relay Module 10A/250VAC 10A/30VDC
EUR 3.95 to EUR 4.28
AC 220/230V to DC3-24V Trigger Optocoupler Switch Button Sensor Arduino ESP8266
EUR 4.92
ESP8266 Relay Board ESP12-F 32Mbit Flash +25dBm ESP-12F WiFi Wifi Module Arduino
EUR 7.83
Songle SRA-CL Mini Relay SRA-5VDC-CL SRA-12VDC-CL SRA-24VDC-CL 14VDC 125VAC 20A
EUR 2.21
WeMos D1 1 Channel Relay Controller Module with Pins Shield Extensions ESP8266
EUR 4.39
3 Channel Channel Smart STC15 MCU 5V Interlock Self Locking Relay
EUR 8.78
12V Undervoltage Battery Rechargeable Safety LM358 Low Voltage Cut Off Protection
EUR 6.28
NE555 1 Channel Relay Delay Relay Module Timer 0-10 Sec 5v 12v Arduino
EUR 3.87 to EUR 4.66
ESP32 ESP8266 Raspberry Pi 1 Channel 3.3V Signal Relay 3.3V Relay Module
EUR 3.98
8 Channel Relay Module 5V / 12V Optocoupler High Level Trigger Arduino ESP8266
EUR 7.39 to EUR 7.94
4 Channel 4CH Relay Module 5V/12V 10A/250VAC 10A/30VDC 4 Channel Optocoupler Trigger
EUR 4.54
XH-M203 12V Water Level Pump Limit Switch End Stop Switch Water Level Relay
EUR 4.78
ESP8266 ESP32 Raspberry Pi 3 Channel/Channel Relay Module 3.3V Signal 5V Opto
EUR 5.76
8 Channel Channel Relay Module 5V/12V Optocoupler High Low Level Arduino ESP8266
EUR 9.64
YL-83 rain sensor 5V 12V relay set water water rain LM393 adjustable adj
EUR 6.78
MEM2313 bistable self-locking electronic switch latch selflocking dual P channel
EUR 5.98
ESP8266 16 Channel/Channel Relay Module 5V/12V with Optocoupler Low Current
EUR 17.99