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24V 4 Channel Relay Module Switch Optocoupler Fully Isolated Microcontroller PLC Amplification 1.Description: It is a 24V 4 Channel Relay Module/Switch Optocoupler Fully Isolated Microcontroller PLC Amplification. 2.Parameter: 1>.Power supply: 24V 2>.Static current: 0mA 3>.Single c... $7.99 SKU: GY21084-1
$7.99

24V 2 Channel Relay Module Switch Optocoupler Fully Isolated Microcontroller PLC Amplification 1.Description: It is a 24V 2 Channel Relay Module/Switch Optocoupler Fully Isolated Microcontroller PLC Amplification. 2.Parameter: 1>.Power supply: 24V 2>.Static current: 0mA 3>.Single c... $3.49
~~$4.99~~ SKU: GY21083-1
$3.49
~~$4.99~~
31

12V 1 Channel Relay Module/Switch Optocoupler Fully Isolated Microcontroller PLC Amplification 1.Description: It is a 12V 1 Channel Relay Module/Switch Optocoupler Fully Isolated Microcontroller PLC Amplification. 2.Parameter: 1>.Power supply: 12V 2>.Static current: 0mA 3>.Single c... $3.59 SKU: GY21082-1
$3.59

5V Delay Relay Module with Edge-Triggered Control and Loop Cycle for Seamless Switching 1.Description: It is a 5V Delay Relay Module with Edge-Triggered Control and Loop Cycle for Seamless Switching 2.Parameter: 1>.Power supply: DC 5V 2>.Input signal: High-level (PNP), Low-level (... $10.99 SKU: GY21080-1
$10.99

DC 12V 5-Channel Self-locking Relay Module 5Bit 10A High/Low Level Trigger Select Switch Controller 1.Description: It is a latching relay module.It has 5 relay channels and can connect 5 loads. 2.Feature: 1).The self-locking relay module has a power indicator and a working indicator,and the working status of the ... $11.99 SKU: GY20640
$11.99

DC 5-60V ESP32 Single Channel Wireless WIFI Relay Module ESP32-WROOM Development Board 1.Description: DC powered ESP32 single-channel relay development board equipped with ESP32-WROOM-32EWiFi&BLE mode Blocks, I/O ports are all led out, and support DC5-60V power supply mode. It is suitable for ESP32 secon... $9.37
~~$13.39~~ SKU: GY20985-1
$9.37
~~$13.39~~
31

8 Channel ESP8266 Wireless WIFI Relay Module ESP-12F Development Board 1.Description: This ESP8266 WIFI 8-Channel Relay Module ESP-12F Development Board is perfect for Arduino development environment with reference code and is suitable for ESP8266 secondary development and learning, smart hom... $13.29
~~$18.99~~ SKU: GY20984-1
$13.29
~~$18.99~~
30

ESP8266 WIFI 4 Channel Relay Module ESP-12F Development Board 1.Description: This ESP8266 WIFI 4-Channel Relay Module is an ideal choice for home automation system. It supports WiFi connection, enabling you to control your appliances or devices remotely. It can be used to switch on/off lig... $9.79
~~$13.99~~ SKU: GY20982-1
$9.79
~~$13.99~~
31

DC 7-28V Modbus RTU Network Relay Module W5500 Ethernet LAN Controller 1.Description: Modbus RTU Network Relay Module W5500 Ethernet LAN Controller equipped with mature and stable 32-bit MCU and W5500 all-hardware TCP/IP protocol stack network chip. Reserved MCU debugging interface to s... $29.99 SKU: GY20821-1
$29.99

DC 7V-30V Dual Cycle Relay MOS Controller Module Adjustable Time 100s-ON 100s-OFF Power-ON Trigger Control Switch 1.Description: It is a DC 7V-30V Dual Cycle Relay MOS Controller Module Adjustable Time 100s-ON & 100s-OFF Power-ON Trigger Control Switch. 2.Feature: 1>.High timer precision 2>.Stable and ... $5.59 SKU: GY20803-1
$5.59

DC 12V 24V Self-locking Relay Module ON OFF Bistable Switch Controller 1.Description: It is a DC 12V 24V Self-locking Relay Module ON/OFF Bistable Switch Controller. 2.Feature: 1>.Anti-reverse protection 2>.Power off hold function 3>.Wide voltage input... $6.99 SKU: GY20805-1
$6.99

DC 12V-24V Ultrasonic Range Finder Module Relay Switch 5-500cm Adjustable Distance Tester for Alarm 1.Description: It is a DC12V-24V Ultrasonic Range Finder Module Relay Switch 5-500cm Adjustable Distance Tester for Alarm. 2.Feature: 1>.High measurement accuracy 2>.Strong anti-interference ... $19.59
~~$27.99~~ SKU: GY20850-1
$19.59
~~$27.99~~
30

Wireless Remote Control Switch DC 12V Relay Module Lockless Self-locking Delay Controller 1.Description: It is a Wireless Remote Control Switch DC 12V Relay Module Lockless/Self-locking/Delay Controller. 2.Feature: 1>.Smart, convenient and safe 2>.Stable and reliable performance &... $6.29
~~$8.99~~ SKU: GY20767-1
$6.29
~~$8.99~~
30

DC 5V-30V Time Delay Switch,12V 24V10A Programmable Relay Switch Module, LED Display Digital Time Cycle 0.1s-999mins ON-Off Control Description: WIDE VOLTAGE: Working voltage is DC 5V-30V, suitable for most equipment, very convenient. Support micro USB 5V power supply. It can be used to control the equipment within DC 30V 5A or within AC 220V 5A. TRIGGER: Sup... $9.99 SKU: GY20599
$9.99

DC 5V 16-Channel Wireless WIFI Module IoT ESP32 Relay Driver Remote Controller 16Bit Switch Module APP Transceiver 1.Description: It is a 16-bit relay driver module.It can realize mobile phone, computer, remote control. 2.Feature: 1>.Built-in test code 2>.Multi-bit IoT control 3>.ESP32 main control ch... $11.89
~~$16.99~~ SKU: GY18022
$11.89
~~$16.99~~
30

AC 110V 220V Trigger Delay Cycle Timing Relay Switch Control Module 1.Description: It is a 220V one channel relay module.It can adjust trigger delay,cycle timing.There are 4 working modes to choose from. 2.Feature: 1).It has a digital display that can display numbers ... $6.99
~~$9.99~~ SKU: GY20509
$6.99
~~$9.99~~
30

PID Digital Temperature Controller Thermostat NTC Sensor Heating Cooling Relay Switch for Industrial/Home PID Digital Temperature Controller 1.Description: It is a PID Digital Temperature Controller with industrial-grade chip, high-precision NTC temperature sensor. LED digital tube dual display, very clea... $11.89
~~$16.99~~ SKU: GY20490
$11.89
~~$16.99~~
30

12V DC Digital Temperature Controller, WiFi APP Control High Temperature Control Module -99°C~999°C 24V Thermostat Control Switch Board with 10A One-Channel Relay Waterproof K-Type Thermocouple Probe About this item: 【APP CONTROL】Are you also worried about whether your heating equipment is working properly when you are not at home? Comes with a WiFi module, just connect to the WiFi network once and download the APP, ... $15.39
~~$21.99~~ SKU: GY20338
$15.39
~~$21.99~~
30

Modbus RTU 1-Channel Relay Module, RS485 Communication Protocol/TTL UART Relay 1.Description: It is a single relay module. The single channel relay module is equipped with a mature and stable 8-bit MCU and RS485 level communication chip. Using standard MODBUSRTU format RS485 communication protocol, it can ... $15.99 SKU: GY19918
$15.99

1 Channel Self-Locking Switch High Level Trigger 12V Relay Module 1.Description: It is a 12V self-locking relay module.When the K terminal is in contact with the positive pole,the state of the relay is reversed.Touch it once,the relay is closed,and touch it again,the relay is released. 2.... $9.09
~~$12.99~~ SKU: GY19936
$9.09
~~$12.99~~
30

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