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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

SHT20 Humidity Temperature Controller DC 12V 0-100%RH -20-60 Celsius Digital LCD Display 2-Channel Relay Module Description: XY-TR01 Temperature and humidity control module high precision digital display word double output automatic constant temperature and humidity control panel. Product adopts industrial-grade chip, high-precision SHT20 temp... $11.89
~~$16.99~~ SKU: 13319
$11.89
~~$16.99~~
30

4 Channel Modbus Relay Module 4Bit Modbus-RTU Switch Signal Input Output RS485 TTL Controller 1.Description: LC 4 channel Modbus relay module equipped with mature and stable 8-bit MCU and RS485 level communication chip,adopt standard MODBUS RTU format RS485 communication protocol. It can realize 4bit input signal detec... $11.99 SKU: 15044
$11.99

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 7V-30V 2-Channel Delay Module Switch Controller Motor Forward Reverse Relay Module 1.Introduction: It is a DC 7-30V double two-way delay control switch solenoid valve high-power motor forward and reverse relay module. 2.Feature: 1>.Wide voltage range. 2>.High-power. 3>.Power-off memory. 4>.Ti... $13.29
~~$18.99~~ SKU: GY21284-1
$13.29
~~$18.99~~
30

WIFI High Temperature Controller APP Remote Control K-type Thermocouple -99~999C LCD Display 10A Relay Switch Controller 1.Description: XY-WT04-W is a wireless WIFI K-type digital high temperature controller module with APP Sinilink control. It can be widely used at smart home,Industrial control, Automatic irrigation, Indoor ventilation. Protection equip... $13.29
~~$18.99~~ SKU: GY21223-1
$13.29
~~$18.99~~
30

DC 12V 2.4G IoT Wireless Transceiver WIFI Intelligent Controller Switch 10A Relay Module APP Control 1.Description: It is a Wifi relay control module.It requires no programming, just download an "eWeLink" APP and link to WIFI to control the built-in cloud.As long as the module is connected to WIFI, the mobile phone ... $13.99 SKU: GY18128
$13.99

4 Channel Wireless Controller WIFI Relay Module Inching/Self-Locking/Interlock APP AC 220V Smart Switch for DIY Smart Home Description: It is a WIFI module based 4 channel (4-way) WIFI wireless switch. It integrates with MCU and button control. It supports to connect and control 4 home appliances, which can be separately turned on/off by app eWeLink b... $13.99
~~$19.99~~ SKU: 13330
$13.99
~~$19.99~~
30

High Temperature Temperature Controller K-type Thermocouple -99~999C LCD Display 10A Relay Switch Controller XY-T04 High Temperature Controller 1.Description: XY-T04 is a K-type digital high temperature controller module. It can be widely used at Smart home,Industrial control, Automatic irrigation, Indoor ventilation. Protection equipment... $13.99
~~$19.99~~ SKU: GY20337
$13.99
~~$19.99~~
30

DC 0-99.9V Voltage Monitor Module Programmable Delay Relay Switch Controller Battery Protector 1.Description: A30-U1 is a DC 99.9V Voltage Monitor Module with Delay. It can flexibly set detection upper and lower limit voltage values and set triggering conditions.It can realize functions such as voltage detection, overvoltage and... $14.99 SKU: GY21111-1
$14.99

RS485 Modbus-RTU 12V 3Bit Relay Module 3-Channel Switch Controller for Arduino 1.Description: It is a 3 bit ModbusRTU relay module.It supports RS485 communication interface and TTL communication interface,3 input and output. 2.Feature: 1>.Modbus serial communication ... $14.99 SKU: GY18121
$14.99

8-Channel RS485 Multifunctional Delay Relay Module DC 12V Modbus RTU Controller 1.Description: R421A08 8 channel Modbus relay module equipped with mature and stable 8-bit MCU and RS485 level communication chip,adopt standard MODBUS RTU format RS485 communication protocol. It can realize 8bit input signal ... $15.19
~~$18.99~~ SKU: 15080
$15.19
~~$18.99~~

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

XH-M452 DC 12V LED Dual Digital Temperature Humidity Controller Independent Output 10A Relay Control Thermostat +Probe Description: XH-M452 use ST controller and high-precision temperature sensor probe.Good performance and accuracy.Simple panel control, wide temperature range, simple design, elegant appearance, high mechanical strength. It can be embed... $15.39
~~$21.99~~ SKU: 13227
$15.39
~~$21.99~~
30

RS485 Modbus-RTU 12V 4Bit Relay Module 4-Channel Switch Controller for Arduino 1.Description: It is a 4 bit ModbusRTU relay module.It supports RS485 communication interface and TTL communication interface,4 input and output. 2.Feature: 1>.Modbus serial communication ... $15.79 SKU: GY18120
$15.79

AC 110V-230V Wifi Relay Switch Multi-Channel Remote Control Network Relay w/ Antenna Product Introduction: 1>. Size: 116*92*42mm 2>. Antenna Length: 10cm 3>. Operating Voltage: AC 110V-230V 4>. Output Port: NO NC; Mechanical Switch Output Port 5>. Rated Load: AC 0-250V/8A 1400W; DC 0-30... $20.99
~~$29.99~~ SKU: 10966
$20.99
~~$29.99~~
30

DC 12V 24V RES485 Modbus RTU Relay Controller,16CH-IN-NPN 16CH-OUT Programmable Switch Optocoupler Isolator for PLC 1.Description: The Optocoupler Isolator for PLC is an expansion board used to increase the number of control objects to meet the control requirements of the system. In MODBUS mode, a maximum of 64 devices can be connected in para... $21.99 SKU: GY21188-1
$21.99

DC 12V 2.4G IoT Wireless Transceiver 4Bit WIFI Intelligent Controller Switch 10A Relay Module 4-Channel APP Control 1.Description: It is a 4 way Wifi relay control module.It requires no programming,just download an "eWeLink" APP and link to WIFI to control the built-in cloud.As long as the module is connected to WIFI,the mobile ph... $25.99 SKU: GY18126
$25.99

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

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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