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"reset switch extension"
5Pcs 1 Channel DC 3V/3.3V Power Relay Module 3V Relay Switch Module with Optocoupler Relay Module Isolated Drive Control Board 10A 250VAC 10A 30VDC Control Development Board
Limited time offer, ends 11/08
$16.73
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12V 4 Channels Bluetooth Relay Module 4 Way Bluetooth Wireless Smart Relay Module Smart Home Phone APP Remote Control Switch
Limited time offer, ends 11/08
$22.11
Free Shipping
12V Dual Way Bluetooth Relay Module 12V 10A Wireless Smart Relay Module IoT Smart Home Phone APP Remote Control Switch
Limited time offer, ends 11/08
$16.73
Free Shipping
3V Intelligent Light Control Sensor Switch Light Sensor Board for LED Lamp Beads Support 3V Power Supply (PCB Board)
Limited time offer, ends 11/08
$24.66
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AJMRTC 3V Intelligent Light Control Sensor Switch Assembly Kit, Light Sensing PCB Module, Auto On/Off Control for LED Lamp Beads, DC 3V Powered DIY Electronic Soldering Practice Kit
Limited time offer, ends 11/29
$18.22
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USB Serial Port Control Relay Module Sturdy Durable Lightweight USB Relay Module USB Intelligent Control Switch Overcurrent Protection Intelligent Command Control Switch Intelligent Home
Limited time offer, ends 11/08
$16.43
Free Shipping
E3F-DS30P1 Proximity Switch Photoelectric Sensor Switch 30cm Adjustable Detection Distance Diffuse Reflection Infrared Switch DC 6-36V 3-Wire PNP NO
Limited time offer, ends 11/08
$17.03
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AJMRTC AC 220V Optocoupler Detection Module, AC Sensing Opto-isolator Board, DC 3-5V TTL Signal Output, Isolated AC Voltage Detector for Arduino ESP32 Industrial Monitoring DIY Project
Limited time offer, ends 11/29
$16.81
Free Shipping
12V 24V PIR Motion Sensor 7-10M Switch IR Infrared Human Body Induction Sensor Detector Switch for LED Light Switch
Limited time offer, ends 11/08
3pcs TTP229 16 Channel 16 Keys Digital Capacitive Switch Touch Sensor Module
Limited time offer, ends 11/08
12V Bluetooth Relay Module - Mobile Phone Wireless Remote Control Switch - IoT
Limited time offer, ends 11/08
$16.73
Free Shipping
0-5A AC Current Detection Sensor Module Switch Output (DC 24V, Green)
Limited time offer, ends 11/08
$16.18
Free Shipping
2 Pack 5V 2-Channel Relay Module with Optocoupler, Red Expansion Board Supports High/Low Level Trigger 2-Way OPTO
Limited time offer, ends 11/08
12V 2 Channel Solid State Relay Module, Low Level Trigger, 5A DC Control for Raspberry Pi
Limited time offer, ends 11/08
$15.97
Free Shipping
5Pcs 12V 300mA Power Supply Module 3.5W AC-DC Isolation Switch Power Module 220V to 12V Buck Converter Board Module
Limited time offer, ends 11/08
$16.73
Free Shipping
5V Power On Time Delay Relay Module, Adjustable Delay Timer Circuit Board, for Automation Projects
Limited time offer, ends 11/08
$16.58
Free Shipping
2PCS 2 Channel Automatic Power Switching Module Automatic Emergency Power Supply Module Switch Dual Power Supply Module AC 90-240V 10A Backup Battery Switch Controller Module
Limited time offer, ends 11/08
$15.33
Free Shipping
5V Multi-Mode Time Delay Relay Module, Adjustable Delay Timer, for Automation Home Appliances DIY Projects
Limited time offer, ends 11/08
$16.46
Free Shipping
DC 6-30V Timer Delay Triggered Relay Module 1 Channel Way 5V Multifunction Switch Control Relay Cycle Timer Digit LED Display Micro USB
Limited time offer, ends 11/08
$14.97
Free Shipping
12V Power On Time Delay Relay Module, Adjustable Delay Timer Circuit Board, for Automation Projects
Limited time offer, ends 11/08
$15.16
Free Shipping
HW-521B 1-Channel Timer Relay Module Delay DC 6-30V Power Off Disconnect Trigger Delay Cycle Timer with LED Display Circuit On Type-C USB-C Interface, Smart Home Controller
Limited time offer, ends 11/08
$18.76
Free Shipping
AJMRTC Contactless Infrared Sensor Switch, No Touch Door Release Exit Button with LED Indication, Non-contact IR Sensor Door Access Control Switch for Home & Office Door System
Limited time offer, ends 11/25
$12.45
Free Shipping
24V 2 Channel Solid State Relay Module, Low Level Trigger, 5A DC Control for Raspberry Pi
Limited time offer, ends 11/08
$16.13
Free Shipping
Modbus-Rtu 7-24V 4 Channel Relay Module Switch Modbus RTU Switch Input Output 5V RS485 TTL Communication Anti-Reverse Connection
Limited time offer, ends 11/08
$16.73
Free Shipping
2Pcs 1 Channel Switch Relay Module Modbus Rtu Switching Input Output Relays Board with Anti-Reverse Connection Protection RS485 TTL Communication
Limited time offer, ends 11/08
$16.71
Free Shipping