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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

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

2 Bit 12V Relay Module with Optocoupler Isolation Support High and Low Level Trigger Dual Relay Module 1.Description: It is a 2-Bit 12V relay module. It is suitable for various platforms such as 51/AVR/AVR/ARM, and can control various household appliances and high current loads. 2.Feature: 1).The contact part of the... $7.69
~~$10.99~~ SKU: GY19935
$7.69
~~$10.99~~
31

6 Channel SPDT Switch Module, DC 24V Relay Module, AC 270V with Isolated Optocoupler DIN Rail Mount High and Low Level Trigger DC 24V 6 Channel SPDT Relay Module With Isolated Optocoupler and DIN Rail Mount Introduction: It is a Q14F 24V Pluggable 6Bit SPDT Power Relay Module. It includes 6pcs intermediate relay with SPDT output control terminal. It is ... $18.89
~~$26.99~~ SKU: GY20262
$18.89
~~$26.99~~
30

5A Overcurrent Protection Sensor Module AC Current Detection Sensor DC 12V Relay Module 1.Description: It is a overcurrent protection sensor module. It uses a current transformer to collect AC signals and realizes the relay signal output after an overcurrent in the range of 0-5A. The relay pulls in when there is ... $4.19
~~$5.99~~ SKU: GY19799
$4.19
~~$5.99~~
31

220V Raindrop Controller Relay Module Raindrop Sensor Module Leaf Surface Humidity Water Switch On Description: It is a 220V raindrop controller.It can be used to monitor various weather conditions,and directly output with a relay to control the startup and shutdown of motors. Feature: ... $8.39
~~$11.99~~ SKU: GY18957
$8.39
~~$11.99~~
30

AC 110V 220V Power-ON Delay Relay Module AC 220V 7A Voltage Output 180min Adjustable Switch Timer Delay Controller 1.Description: It is a delay off switch module.After the switch is energized,the switch is opened,and at the same time,the 220V live wire is output to supply power to the consumer.After a delay,the switch is closed and the out... $5.99 SKU: GY18749
$5.99

DC 12V Pulse Counter High Level Trigger Relay Module 0-10KHz Frequency Counter for Motor Speed Hall Sensor 1.Description: YL3S-C1.1 is a 0-10KHz Frequency Pulse Counter. It can detect the number of input signal pulses and through calculations to control the different working states of the load. No... $8.39
~~$11.99~~ SKU: GY18316
$8.39
~~$11.99~~
30

AC 110V 220V Button Control Switch High Level Signal Trigger Countdown Timer Relay Switch Module LED Display 1.Description: YLC-1.1AC220 is a Timer Relay Switch Module .It will start to countdown and turn ON output after get a input trigger signal by press button. Trigger again is invalid during the countdown period. ... $9.63
~~$13.75~~ SKU: GY18314
$9.63
~~$13.75~~
30

RS485 Modbus-RTU 12V 8Bit Relay Module 8-Channel Switch Controller for Arduino 1.Description: It is a 8 bit ModbusRTU relay module.It supports RS485 communication interface and TTL communication interface,8 input and output. 2.Feature: 1>.Modbus serial communicati... $29.99 SKU: GY18157
$29.99

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