12V Modbus RTU 1, Channel Relay Module, Input Optocoupler, Isolation RS485 MCU for, Arduino


In stock

SKU: 1121213
  1.   Product Name:1 Bit ModbusRTU Relay Module
  2.   Working Voltage:DC 12V
  3.   Working Current:1A
  4.   Work Temperature:-25℃~85℃
  5.   Work Humidity:5%~95%RH
  6.   Size:84*27*20mm

 360.00 (Incl. GST)

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Brand: Generic
Category: Relay Modules
Tags: Modbus Relay modules

This is a one-channel Modbus RTU relay module equipped with a stable 8-bit MCU and RS485 level communication chip, adopting standard MODBUS RTU format RS485 communication protocol. It can realize 2-bit input signal detection and provides a 2-bit relay output. It can be used for digital detection or power control occasions.


  1. Supports all MCU control.
  2. The industrial field.
  3. PLC control.
  4. Smart home control.


  1. .Modbus serial communication
  2. Relay switching output
  3. Convenient AT command control

Package Includes:

1 x 12V Modbus RTU 1 Channels Relay Module

SKU: 1121213 Category: Tag:
Product Name

1 Bit ModbusRTU Relay Module

Working Voltage

DC 12V

Working Current


Operating Temperature (°C)


Working Humidity Range


Size (mm):


Shipping Weight 0.028 kg
Shipping Dimensions 10 × 6 × 2 cm
15 Days Warranty

This item is covered with a standard warranty of 15 days from the time of delivery against manufacturing defects only. This warranty is given for the benefit of Robu customers from any kind of manufacturing defects. Replacement will be done against manufacturing defects.

What voids warranty:

If the product is subject to misuse, tampering, static discharge, accident, water or fire damage, use of chemicals & soldered or altered in any way.

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Country Of Origin: China