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UART 485/232/TTL
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RS485 Modues & relays
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Wireless RS485/RS232 series 1
Current Voltage ADC Collector
RS485 Relays
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series 1
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top saler
OPMSA04 Input 3.3-5V NPN Output 4CH DC 3.3-24V 0-2kHz PWM Signal Amplifier NPN/PNP Logic Level Converter LED Driver 5A IO Current Amplifier
US$7.59
N4VIA02 5A Multifunctional RS485 Ammeter & Voltmeter 0-30V Voltage & 0-5A Current Measurement Module Modbus RTU
US$7.99
OPMSD16 PNP Input 3.3-5V NPN Output 16CH DC 3.3-24V 5A MOS Solid State Relay Module Din Rail Mount NPN/PNP PLC IO Signal Amplifier for Motor Relay LED
US$23.99
R4IVB02 Power 6-25V IN0-20MA Low-Cost 2-AI Modbus RS485 Voltage Current 12Bit ADC Collection Module 4-20mA 0-10V PLC HMI Analog Remote IO Expansion Board
US$3.99
10IOA02 24V 2CH Isolation Digital Switch 2DI-2DO PLC IO Expanding Board RS485 Relay Module Modbus RTU Code 01 05 15 02 03 06 16
US$9.99
PWM8A04 DC 12V 3CH RS485 1Hz-20kHz Duty Cycle Frequency Adjustable PWM Square Wave Pulse Generator Modbus RTU
US$3.99
New Products [more]
LR12A01 DC 12V Magnetic Latching Relay Module Bistable Self-locking Flip-Flop Latch Switch Board for Arduino ESP32
US$2.99
LR12A01 DC 5V Magnetic Latching Relay Module Bistable Self-locking Flip-Flop Latch Switch Board for Arduino ESP32
US$2.99
N4VIH16 5V 16AI 0-5V 0-10V Current/Voltage Analog Acquisition RS485 Modbus RTU ADC Module DC 5V 12V 24V mini PinBoard
US$9.99
DD0324PW 12V 25W Mini Size High-power 2-5Cell Battery Multiplier 3.7V 4.2V to 8.4V 12.6V 16.8V 21V DC-DC Boost Converter Module 5V 12V 15 24V
US$2.99
LR12A01 DC 24V Magnetic Latching Relay Module Bistable Self-locking Flip-Flop Latch Switch Board for Arduino ESP32
US$2.99
DD0324PW 5V 25W Mini Size High-power 2-5Cell Battery Multiplier 3.7V 4.2V to 8.4V 12.6V 16.8V 21V DC-DC Boost Converter Module 5V 12V 15 24V
US$2.99
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N4ROD08 Mini DC 12V 8CH Multifunction Modbus Rtu RS485 Relay Board 2A 0.2W Low Power Consumption Micro Voice Relay Module N4ROF32
US$15.99
N4ROC04 Mini DC 12V 4CH Multifunction Modbus Rtu RS485 Relay Board 2A 0.2W Low Power Consumption Micro Voice Relay Module N4ROF32
US$9.99
N4ROC04 Mini DC 24V 4CH Multifunction Modbus Rtu RS485 Relay Board 2A 0.2W Low Power Consumption Micro Voice Relay Module N4ROF32
US$10.69
N4ROC04 Mini DC 12V 4CH Multifunction Modbus Rtu RS485 Relay Board 2A 0.2W Low Power Consumption Micro Voice Relay Module N4ROF32
US$10.69
N4ROC04 Mini DC 24V 4CH Multifunction Modbus Rtu RS485 Relay Board 2A 0.2W Low Power Consumption Micro Voice Relay Module N4ROF32
US$9.99
N4ROD08 Mini DC 24V 8CH Multifunction Modbus Rtu RS485 Relay Board 2A 0.2W Low Power Consumption Micro Voice Relay Module N4ROF32
US$16.99
N4ROD08 Mini DC 12V 8CH Multifunction Modbus Rtu RS485 Relay Board 2A 0.2W Low Power Consumption Micro Voice Relay Module N4ROF32
US$16.99
N4ROD08 Mini DC 24V 8CH Multifunction Modbus Rtu RS485 Relay Board 2A 0.2W Low Power Consumption Micro Voice Relay Module N4ROF32
US$15.99
N4ROA01 Mini DC 24V 8CH Multifunction Modbus Rtu RS485 Relay Board 2A 0.2W Low Power Consumption Micro Voice Relay Module N4ROF32
US$5.99
N4ROE16 Mini DC 12V 16CH Multifunction Modbus Rtu RS485 Relay Board 2A 0.2W Low Power Consumption Micro Voice Relay Module N4ROF32
US$27.99
N4ROE16 Mini DC 24V 16CH Multifunction Modbus Rtu RS485 Relay Board 2A 0.2W Low Power Consumption Micro Voice Relay Module N4ROF32
US$25.99
N4ROE16 Mini DC 12V 16CH Multifunction Modbus Rtu RS485 Relay Board 2A 0.2W Low Power Consumption Micro Voice Relay Module N4ROF32
US$25.99
N4ROE16 Mini DC 24V 16CH Multifunction Modbus Rtu RS485 Relay Board 2A 0.2W Low Power Consumption Micro Voice Relay Module N4ROF32
US$27.99
SL35B02 2-channel Relay Shield Module Self-locking Function Low Pulse Trigger Switch for Arduino NANO DUE Robot Wifi Bluetooth
US$4.59
SL35B04 4 channel Relay Shield Module Self-locking Function Low Pulse Trigger Switch for Arduino NANO DUE Robot Wifi Bluetooth
US$8.99
SL35B01 Multi-channel Relay Shield Module Self-locking Function Low Pulse Trigger Switch for Arduino NANO DUE Robot Wifi Bluetooth
US$2.99
CE037 MT8870 DTMF Audio Voice Decoder Display Module For Telephone Phone Keypad Show
US$15.99
TB232 6 Bit 7 segment LED SPI Digital Tube LCD Display Controller Module For Arduino DUE Pro mini Nano UNO MEGA256
US$4.99
CE007 DC 12V 4 CH Multifunction Cycle Delay Timer Relay Module Timing Loop Interlock Self-locking Momentary Bistable Monostable
US$19.99
IO22C04 DC 5V 12V 24V 4 CH Pro mini PLC Board Relay Shield Module For Arduino Delay Timer Switch
US$15.99
PROMINIP for IO22C04 PROMINIP Dc 5v 16m Pro Mini Atmega328p Development Module For Arduino Io22c04 4ch Plc Relay Dc Motor Control Board
US$7.99
IO22C01 DC 12V High-Trigger Multifunction Self-lock Relay PLC Cycle Timer Module Delay Time Switch Board
US$4.99
IO22A02 12V 2CH Multi-function Delay Relay Timer Control Switch LED PLC Home Lamp Motor
US$9.99
CE041 DC 5V 9V 12V 24V 4CH Bluetooth Relay Android App Wireless Remote Controller For Smart Home Motor LED Car Access
US$19.99
CE040 DC 12V 4 CH RS485 Relay Module Modbus RTU And AT Command Remote Control Switch for PLC PTZ Camera Security Monitoring
US$13.99
CE039 DC 5V 4 CH RS232 Relay Board PC USB UART DB9 Remote Control Switch For Smart Home Garage Door Car Alarm Farm Motor
US$12.99
CE039 DC 12V 4 CH RS232 Relay Board PC USB UART DB9 Remote Control Switch For Smart Home Garage Door Car Alarm Farm Motor
US$12.99
CE038 DC 5V 12V 24V 4CH Bluetooth compatible Relay 2.4G RF Wireless Remote Control Switch for Apple IOS Android Mobile
US$22.99
AE11A04 DTMF Generator Encoder Transmitter Module Dialing Keyboard MCU Control For PC Interphone Mobile Audio Smart Home
US$9.99
R4M9B12 DC 6-24V 4CH TTL232 Multifunction MOS Transistor Solid State Relay Module Modbus RTU AT Command for PLC Motor PTZ LED
US$9.99
R4M9B12 DC 6-24V 4CH RS485 TTL232 Multifunction MOS Transistor Solid State Relay Module Modbus RTU AT Command for PLC Motor PTZ LED
US$9.99
CE023 DC 12V DTMF MT8870 Phone Voice Decoder Control Momentary Toggle Latch Delay Timer Multifunction Relay Remote Switch Module
US$15.99
AD22A08 DC 12V 8 CH DTMF Relay MT8870 Decoder Phone Remote Control Switch For AC DC Motor LED
US$16.99
CE005 MT8870 DTMF Decoder Voice Decoding Module phone Remote Control Board For_Ardiuno MCU Raspberry pi DUE UNO MEGA2560 NANO
US$4.99
CE004 16 CH DTMF MT8870 Audio Decoder Phone Voice Decoding Controller For Smart Home Automation Relay Module
US$9.99
N221B02 DC 5V 7.5V 9V 2Channel RS232 Relay Board Remote Control USB PC UART COM Serial Ports
US$9.99
ND1805TA 5A Buck DC-DC Converter Module 4.5V-18V To 5V Board For lm2596 lm317 nodemcu raspberry pi 4 led matrix
US$1.99
ND1805TA 5A Buck DC-DC Converter Module 4.5V-18V To 3V Board For lm2596 lm317 nodemcu raspberry pi 4 led matrix
US$1.99
ND1805TA 5A Buck DC-DC Converter Module 4.5V-18V To 4.2V Board For lm2596 lm317 nodemcu raspberry pi 4 led matrix
US$1.99
ND1805TA 5A Buck DC-DC Converter Module 4.5V-18V To 3.7V Board For lm2596 lm317 nodemcu raspberry pi 4 led matrix
US$1.99
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