2AO-8AI-8DI-8DO ESP32 Relay Board 4-20MA 0-10V Digital Analog Input Output Modul AU $43.13 to AU $47.75
VHF/UHF Radio RF UART RS485 Wireless Transceiver Board Modbus RTU Master-Slave AU $15.24 to AU $47.60
8DI-8DO-1VO-1IO PLC MCU Debugging Board NPN PNP DAC ADC Digital Analog Output AU $19.86 to AU $76.72
8 CH Multi-Function Design DC 12V RF ASK Wireless Remote Controller Delay Kits AU $54.65Was: AU $79.21
DC 12V Motor Delay Switch Forward Reverse Timing Adjustable RF Remote Control AU $30.35Was: AU $43.99
2 PCS 433M 868M RS485 RS232 USB Wireless Transceiver Serial Data Long-Distance AU $16.78 to AU $56.84
3in1 Charger Discharger DC4.6-6V to 4.2V Battery DC 3.7V 3.8V to 3V 250mA Power AU $5.99 to AU $15.24
3A Mini Electronic Switch Board Modbus PC USB Serial Port UART RS485 Relay Modul AU $12.16 to AU $42.97
8 16 24 32 48CH Multifunction RS485 Remote IO Module PLC DI-DO expansion Board AU $18.32 to AU $61.45
12V Digital Dual Programmable Relay Control Cycle Delay Timer Timing Switch LED AU $12.13Was: AU $17.58
DC 5-40V 4-bit LED Modbus Rtu Rs485 temperature and humidity sensor acquisition AU $7.07 to AU $21.56
DC 12V 8 Digital Switch to RS485 Acquisition Board Modbus Rtu TTL IO PLC Module AU $7.57Was: AU $10.97
DC 12V RS485 Bus Remote Control Switch UART Serial ports Relay Module Modbus RTU AU $15.18Was: AU $21.99
Rust-proof Water Pump Relay Controller Compatible with DC 12V 24V AC 110V 220V AU $20.00 to AU $33.87
64x16 dot Matrix LED Sign Light Neon Bright MCU Provide for arduiuo Demo Code AU $53.91Was: AU $78.14
8-32 DI-DO PNP to PNP RS485 Modbus Rtu Remote IO Module DC 12-24V 300MA Output AU $20.69 to AU $53.90
2-8CH DC 3.3V 5V Digital Isolation Communication Module TTL LvTTL Level Converte AU $3.05 to AU $6.15
Newly! V3.0 12V 18 Functions Low Pulse Signal PLC Cycle Delay Timer Relay Switch AU $7.43Was: AU $10.77
200W 12V 24V DC Motor Driver 433M Wireless Forward Reverse Limit Speed Board AU $15.18 to AU $59.21Was: AU $21.99