YSJ-120S Voice Recorder Board (Record & Playback Audio - Electronic Toys/Cards)

RS485 Modbus Temperature Humidity Sensor High-Accuracy SHT40

8CH RS485 DS18B20 Sensor Temperature Collector Modbus Remote IO Module

Voice Recorder Module 3-5V 10/30/120 Seconds Sound Playback Board L2KD

8ch Input/Output UART RS485 Modbus RTU Controller PLC Expansion board for MEGA

2CH RS485 Digital Temperature Collector DS18B20 Sensor Modbus Analog Input IO

2PCS DC 12V RS485 to DAC Converter Module Modbus RTU 0-5V 0-10V PLC Multimeter

1/8 Port Industrial Modbus gateway server Modbus TCP to MODBUS RTU/ASCII