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top saler
TB445 PT100 Thermal Resistance Collector
$3.99
PT22B01 DC 12V -40~220 Celsius 1CH Celsius PT100 RTD Thermocouple Celsius Fahrenheit Wide RS485 Temperature Measurement Modbus RTU Board Sensor Module
$3.99
TB445_B PT100 Thermal Resistance Collector
$3.99
N46IB02 4-20MA To RS485 2 CH DC 12V 0-25MA Analog Acquisition Module 12Bit ADC Board Modbus RTU PLC
$3.99
PTA9B01 -20-400 Celsius PT100 Thermocouple Temperature Detector RTD Sensor Tester Converter RS485 Modbus RTU
$5.99
RT38B01 433-458MHz UHF DTU RS485 Bus RF Serial Port UART Transceiver Module for Smart Meter PTZ Camera PLC Modbus
$14.99
New Products [more]
DD24CRTB 2S 2A Type-c Multi-cell 8.4V 12.6 16.8 21V 25.2V Step-up Boost Charger Module for 7.4V 11.1V 14.8V 18.5V 22.2V 18650 Battery Pack
$3.99
DD4012SA mini DC-DC Converter Buck Voltage Regulator IN DC 13.5-40V OUT 12V replace AMS1117 7805 lm2596 DD4012SA
$1.99
DD24CRTB 2S 3A 2-6S Type-c Multi-cell 8.4V 12.6 16.8 21V 25.2V Step-up Boost Charger Module for 7.4V 11.1V 14.8V 18.5V 22.2V 18650 Battery Pack
$3.99
DD24CRTB 3S 2A Type-c Multi-cell 8.4V 12.6 16.8 21V 25.2V Step-up Boost Charger Module for 7.4V 11.1V 14.8V 18.5V 22.2V 18650 Battery Pack
$3.99
DD4012SA mini DC-DC Converter Buck Voltage Regulator IN DC 10.5-40V OUT 9V replace AMS1117 7805 lm2596 DD4012SA
$1.99
DD4012SA mini DC-DC Converter Buck Voltage Regulator IN DC 13.5-40V OUT 12V replace AMS1117 7805 lm2596 DD4012SA
$1.99
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UART 485/232/TTL
RS485 Modues & relays
RS485 Modues & relays
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N4ROA01 Mini DC 12V 8CH Multifunction Modbus Rtu RS485 Relay Board 2A 0.2W Low Power Consumption Micro Voice Relay Module N4ROF32
$5.99
CE035 DC 12V 2 CH RS485 Relay Board UART Serial Port Switch Module Modbus AT Command Control For PLC Smart Home Automated Industry
$10.35
CE035 DC 12V 2 CH RS485 Relay Board UART Serial Port Switch Module Modbus AT Command Control For PLC Smart Home Automated Industry
$13.99
R413E16 Core board RS485 Relay 16ch Multifunction NPN PNP IO Control Core Board Modbus Rtu Module
$6.99
TB440 for R413E16 16ch Relay Board RS485 Relay 16ch Multifunction NPN PNP IO Control Core Board Modbus Rtu Module
$13.99
R4D8A08 DC 12V 8 Channel RS485 Relay Module Modbus RTU UART Remote Control Switch DIN35 C45 Rail Box for PLC PTZ Camera Security Monito
$19.99
R4D8A08 DC 12V 8 Channel RS485 Relay Module Modbus RTU UART Remote Control Switch DIN35 C45 Rail Box for PLC PTZ Camera Security Monito
$17.99
R4D3C32 24V C45 Rail Box DC 32ch DIN35 RS485 Modbus RTU Relay Board 485 Bus Remote Control Switch for LED Motor PLC PTZ Camera Smart
$80.40
R4D3C32 12V C45 Rail Box DC 32ch DIN35 RS485 Modbus RTU Relay Board 485 Bus Remote Control Switch for LED Motor PLC PTZ Camera Smart
$76.94
N467D01 1A 8-30V Small DC Linear Geared Motor Driver Forward Reverse Stop Delay Timer Controller RS485 PLC IO
$8.99
N467D01 2A 8-30V Small DC Linear Geared Motor Driver Forward Reverse Stop Delay Timer Controller RS485 PLC IO
$8.99
CAN4A02 CAN to RS485 Transparent Transmission Converter Field Bus Signal to RS232(TTL) Module for CNC Car Automated Industry PLC Relay
$17.99
CAN4A02 CAN to RS485 Transparent Transmission Converter Field Bus Signal to RS232(TTL) Module for CNC Car Automated Industry PLC Relay
$19.99
R413D08 5V RS485 RS232(TTL) PLC Modbus RTU Module 8ch IO Control Switch Board for Relay Industrial automation
$4.99
R413D08 12V RS485 RS232(TTL) PLC Modbus RTU Module 8ch IO Control Switch Board for Relay Industrial automation
$4.99
AMROD08 8RO Relay Module DC 12V-24V RS485 MODBUS RTU Isolated Communication Digital Output PLC Board
$24.99
AMDIB16 PNP 16DI DC 12V 24V PNP Digital Input Module RS485 Isolated Communication MODBUS RTU PLC Expansion Board
$26.99
AMDIB16 NPN 16DI DC 12V 24V NPN Digital Input Module RS485 Isolated Communication MODBUS RTU PLC Expansion Board
$26.99
SGIOB08 8Ch DC 7-30V Safety Barrier Shell RS485 Digital Optocoupler Input Darlington tube Output Module MODBUS RTU PLC Expansion Board
$29.99
AMDOC16 DC 12V 24V 16DO RS485 Isolated Communication Switch Digital Output MODBUS RTU PLC Expansion Board
$22.99
N4DIG08 8CH Input/Output UART RS485 Modbus RTU Controller PLC Expansion Module For Arduino UNO MEGA NANO STM32 AVR PIC
$3.99
N4DIG08 8CH Input/Output UART RS485 Modbus RTU Controller PLC Expansion Module For Arduino UNO MEGA NANO STM32 AVR PIC
$4.39
N4DIG08 8CH Input/Output UART RS485 Modbus RTU Controller PLC Expansion Module For Arduino UNO MEGA NANO STM32 AVR PIC
$4.19
UD74B08 DC 24V 8ch IO Digital Collector USB COM Serial Port UART Relay Module
$19.99
UD74B08 DC 12V 8ch IO Digital Collector USB COM Serial Port UART Relay Module
$19.99
N434E01 DS18B20 Temperature and Humidity Transmitter Detection Sensor Module Modbus DS18B20 replace SHT20 SHT30 RS485 Analog Signal
$5.99
N434E01 NTC Temperature and Humidity Transmitter Detection Sensor Module Modbus NTC replace SHT20 SHT30 RS485 Analog Signal
$5.99
N434E01 AHT20 Temperature and Humidity Transmitter Detection Sensor Module Modbus AHT20 replace SHT20 SHT30 RS485 Analog Signal
$5.99
SH34D16 16CH RS485 Temperature & Humidity Collector Module SHT30 SHT3X Sensor Remote acquisition Controller Digital Thermometer
$25.99
DM18A01 1 bit 1.8 inch RS485 Modbus Rtu Digital Tube LCD LED Display Module DC 12V 24V for PLC HMI Temperature Humidity Sensor Digital Analog
$6.52
R414A01 DC 5V-23V RS485 Modbus RTU Temperature And Humidity Sensor Remote Acquisition Monitor Replace DHT11 DHT22 DS18B20 PT100
$4.99
WHTCA01 + TB448 + TB449 DC 3.7-5V Lithium Battery Type-C USB Mini Humidifier DIY Kits Mist Maker Driver Circuit Board Fogger Atomization Film
$5.99
DM18A01 1 bit 1.8 inch RS485 Modbus Rtu Digital Tube LCD LED Display Module DC 12V 24V for PLC HMI Temperature Humidity Sensor Digital Analog
$7.39
DM18B02 2 bit 1.8 inch RS485 Modbus Rtu Digital Tube LCD LED Display Module DC 12V 24V for PLC HMI Temperature Humidity Sensor Digital Analog
$10.96
DM18C04 4 bit 1.8 inch RS485 Modbus Rtu Digital Tube LCD LED Display Module DC 12V 24V for PLC HMI Temperature Humidity Sensor Digital Analog
$17.49
NT38D01 485 Mini RS485 1k-100K Resistance Value Measurement Module 10K 3950 NTC Thermistor Collector
$2.49
NT38D01 232 Mini TTL232 1k-100K Resistance Value Measurement Module 10K 3950 NTC Thermistor Collector
$2.99
NT38D01 485 Mini RS485 1k-100K Resistance Value Measurement Module 10K 3950 NTC Thermistor Collector
$2.99
NT38D01 232 Mini TTL232 1k-100K Resistance Value Measurement Module 10K 3950 NTC Thermistor Collector
$2.49
TB457 NTC sensor
$1.17
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