ESP32 RS485 Modbus Relay Module DC 9-24V 4/8 Channel - with WiFi Bluetooth & Optocoupler Isolation, Type-C Interface

High-concerned chemical : none Support APP : No Channel : 4 Package : Yes Model Number : ESP32 Wireless Communication : WiFi,Bluetooth Use : Universal Brand Name : occkic Origin : Mainland China Certification : CE

Features: 1. Optional 4-channel or 8-channel relays, flexibly adaptable to various scenarios. 2. Built in CH340 chip, Type-C interface for one click program burning. 3. Optocoupler input and output isolation, strong anti-interference, stable operation. 4. Supports Modbus protocol and is compatible with industrial automation systems. 5. RS485 and USART interface integration, strong scalability and easy networking. Parameter: Specifications: 4-way, 8-way (optional) Power supply: DC 9-24V power supply/TYPE-C power supply Module: ESP32; Equipped with WIFI and Bluetooth TYPE-C interface: power supply and burning EN reset button: Press the reset button BOOT key: Press and hold the reset key once to enter download mode Optocoupler input: controllable relay Serial port chip: Built in CH340 (can burn programs with one click) Built in: RS485 interface; Support Modbus PCB board size: 4 channels: 93mm * 87mm; Positioning hole 4mm Route 8: 152mm * 87mm; Positioning hole 3.5mm Package Include: 1X relay module

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