Collection: RS485 RS232 TTL UART board
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NT48A08 NT48B20 NT48C32 32Ch RS485 Temperature Collector Modbus RTU Relay Board for NTC Sensor Inspection
Regular price From $11.99Regular priceUnit price / per$17.12Sale price From $11.99Sale -
R4PIN08 DC 5V 12V 24V 8CH RS485 2.54mm Pin Core Board Modbus Rtu Input and Output Control PLC HMI Remote IO Expanding Board R4PIN08
Regular price From $2.99Regular priceUnit price / per$4.20Sale price From $2.99Sale -

ETAIC04 ETVOD08 ETIOE16 Digital Analog Ethernet Remote I/O Modules Modbus MQTT Network Controller
Regular price From $24.99Regular priceUnit price / per$44.99Sale price From $24.99Sale -
OPMSA04 OPMSB08 OPMSC12 OPMSD16 4-16CH 3.3V-24V Digital Logic 5A MOS Solid State NPN PNP PLC Signal Amplifier
Regular price From $4.99Regular priceUnit price / per$14.99Sale price From $4.99Sale -
UDTTL03 UD23202 UD48501 12V 5V VCC Output USB to RS485 RS232 TTL Converter UART PC COM Serial Port Module for PLC IO HMI MCU PTZ Smart Home Debugging
Regular price $7.99Sale price $7.99Unit price / perSale -
R4DCB08 8CH DC 12V RS485 DS18B20 Temperature Sensor Temperature acquisition collector module for Paperless recorder PLC Configuration
Regular price From $1.99Regular priceUnit price / per$1.99Sale price From $1.99 -
CE039 4 Channel RS232 Serial Relay Board 12V DC USB UART Remote Switch Controller For Smart Home Car Alarm Farm Equipment
Regular price $12.99Regular priceUnit price / per$16.99Sale price $12.99Sale -
NT18B07 7 Channel NTC Temperature Transmitter 10K Thermistor to RS485 Acquisition Module for PLC Paperless recorder Configuration Softwa
Regular price From $1.39Regular priceUnit price / per$1.39Sale price From $1.39 -
25IOA08 25IOB16 25IOC32 8-32 DI-DO PNP to PNP RS485 Modbus Rtu Remote IO Module DC 12-24V 300MA DMOS PNP
Regular price From $12.99Regular priceUnit price / per$23.92Sale price From $12.99Sale -
PTDNC04 PT1000 4CH Modbus Wide Range Temperature Sensor PT100 PT1000 RS485 collector resistance value collection
Regular price From $9.96Regular priceUnit price / per$9.96Sale price From $9.96 -
SHA9D01 Industrial Temperature Humidity SHT30 Sensor Adapter Modbus RTU protocol RS485
Regular price From $4.79Regular priceUnit price / per$9.87Sale price From $4.79Sale -
PTA8C04 4ch 500 Celsius PT100 Thermocouple RTD emperature Sensor RS485 Temperature Sensor Module Modbus RTU Board Paperless Recorder
Regular price From $3.79Regular priceUnit price / per$3.79Sale price From $3.79 -
N4DSC08 8CH RS485 DS18B20 Temperature Collector Modbus
Regular price From $11.41Regular priceUnit price / per$11.41Sale price From $11.41 -
N4AIA04 DC 12V 4-20mA 0-5V 0-10V Voltage Signal Acquisition RS485 Modbus RTU Module
Regular price $3.99Regular priceUnit price / per$7.98Sale price $3.99Sale -
N4DSB03 1-2CH RS485 Digital Temperature Collector Module -55 to +125C DS18B20 Sensor DC 5V 12V 24V for Thermostat Smart Home R46CA01
Regular price From $3.26Regular priceUnit price / per$3.26Sale price From $3.26 -
N4DSA02 2CH RS485 Digital Temperature Collector DS18B20 Sensor DC 5V 12V 24V Modbus Analog Input IO for Thermostat Smart Home R46CA01
Regular price From $2.82Regular priceUnit price / per$2.82Sale price From $2.82 -
24DIA16 6.5-25V 16 CH DI NPN Digital PLC IO Expanded 3000VDC Photoelectronic Iso
Regular price From $2.99Regular priceUnit price / per$7.99Sale price From $2.99Sale -
PTA9B01 -20-400 Celsius PT100 Thermocouple RS485 Modbus Rtu Temperature Detector Tester
Regular price From $1.99Regular priceUnit price / per$3.94Sale price From $1.99Sale -
PT21A01 PT22B01 1CH 500 Celsius PT100 Thermocouple RTD emperature Sensor RS485 Temperature Sensor Module Modbus RTU Board Paperless Recorder
Regular price From $0.99Regular priceUnit price / per$0.99Sale price From $0.99 -
R4IOI16 16DI/16DO/8DI-8DO/4DI-12DO/12DI-4DO Modbus Rtu Digital IO RS485 2.54mm Pin Core Board for Arduino ESP32 ESP8266 PLC Smart Home
Regular price From $4.49Regular priceUnit price / per$5.65Sale price From $4.49Sale -
NT57B08 8CH Temperature & Resistance Acquisition Board
Regular price From $11.41Regular priceUnit price / per$11.41Sale price From $11.41 -
CAROA04 CAROB08 CAROC16 4/8/16 DI-DO CAN Relay Controller Module RS485 Digital NPN/PNP IO Expanding Board for CNC Car Automated Industry CARO
Regular price From $17.99Regular priceUnit price / per$17.99Sale price From $17.99 -
N4DIH32 N4DIM32 DC 12V 24V 32CH Optically Isolated Input PNP NPN Switch Digital Collector RS485 Modbus RTU Module
Regular price From $17.99Regular priceUnit price / per$14.99Sale price From $17.99 -
N4DIG08 8ch Input/Output UART RS485 Modbus RTU Controller PLC Expansion board for Arduiuo MEGA NANO STM32 AVR PIC
Regular price From $3.79Regular priceUnit price / per$3.79Sale price From $3.79























