---
product_id: 657202888
title: "DC Communication Box, DC Current Voltage Power Energy Frequency Power Factor Communication Module Meter with RS485 USB Interface, High Precision Ammeter Voltmeter Multimeter(50A)"
brand: "rbsd"
price: "E£ 9412"
currency: EGP
in_stock: true
url: https://www.desertcart.com.eg/products/657202888-dc-communication-box-dc-current-voltage-power-energy-frequency-power
store_origin: EG
region: Egypt
---

# 50A current range High precision multi-parameter meter RS485 & USB communication DC Communication Box, DC Current Voltage Power Energy Frequency Power Factor Communication Module Meter with RS485 USB Interface, High Precision Ammeter Voltmeter Multimeter(50A)

**Brand:** rbsd
**Price:** E£ 9412
**Availability:** ✅ In Stock

## Summary

> ⚡ Empower Your Energy Insights with Precision & Connectivity!

## Quick Answers

- **What is this?** DC Communication Box, DC Current Voltage Power Energy Frequency Power Factor Communication Module Meter with RS485 USB Interface, High Precision Ammeter Voltmeter Multimeter(50A) by rbsd
- **How much does it cost?** E£ 9412 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.eg](https://www.desertcart.com.eg/products/657202888-dc-communication-box-dc-current-voltage-power-energy-frequency-power)

## Best For

- rbsd enthusiasts

## Why This Product

- Trusted rbsd brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Compact & Lightweight:** Sleek 9x6.1x2.5 cm design weighing just 151g fits perfectly into any control panel without bulk or hassle.
- • **Seamless Connectivity:** Equipped with UART to RS485 and USB interfaces supporting Modbus-RTU protocol for effortless integration into modern industrial and smart home networks.
- • **Smart Alarm Protection:** Customizable over-power alarm safeguards your system from overloads and potential fire hazards, ensuring peace of mind in critical operations.
- • **Versatile Compatibility:** Supports multiple shunt options (50A, 100A, 200A, 300A) and independent power supply mode for low-voltage scenarios, maximizing flexibility across applications.
- • **Precision Power Monitoring:** Accurately measures DC voltage (0.05-300V), current (0.02-300A), power (up to 90kW), frequency, and energy consumption for reliable data-driven decisions.

## Overview

The RBSD DC Communication Box is a high-precision ammeter, voltmeter, and multimeter all-in-one, designed for professional-grade DC power monitoring. It measures voltage, current, power, frequency, and energy consumption with wide ranges and supports RS485 and USB communication via Modbus-RTU protocol. Featuring customizable overload alarms and compact design, it integrates seamlessly into industrial and smart energy systems, delivering reliable, real-time data for optimized power management.

## Description

DC Communication Box, DC Current Voltage Power Energy Frequency Power Factor Communication Module Meter with RS485 USB Interface, High Precision Ammeter Voltmeter Multimeter(50A)

## Features

- 【MULTI-FUNCTION TETER】High test accuracy and better compatibility will make it widely used. It has a strong practical measurement function and accurate measurement of physical parameters. The physical layer adopts UART to RS485 communication interface, the baud rate is 9600, the data bit is 8 bits, the stop bit is 2 bit, no parity.
- 【MEASUREMENT PARAMETERS】Multi-function meter can measure DC voltage, current, active power, frequency and energy consumption. The voltage measurement range is 0.05-300V (When the test voltage is ＜7V, please use the independent power supply mode)；The current measuring range: 0.02-300A (Can be matched with 50A, 100A, 200A, 300A four kinds of shunt)；The power measurement range is 0.2-90kW；The energy consumption measuring range is 0-9999kWh.
- 【ALARM INDICATION】Alarm indication: over power alarm: active power threshold can be set, when the measured active power exceeds the threshold, an alarm can be issued. The overload alarm function not only protects the instrument from being burnt out, but also serves as a safety against fire.
- 【APPLICATION LAYER PROTOCOL】The application layer use the Modbus-RTU protocol to communicate.At present, it only supports function codes such as 0x03 (Read Holding Register), 0x04 (Read Input Register), 0x06 (Write Single Register), 0x41 (Calibration), 0x42 (Reset energy).etc.
- 【NOTE】RS485 interface is passive output, need external connect 5V power supply and the external power supply should ＞100mA.When the input test voltage is less than 7V, it must supply 5V independent work voltage through USB port. Do NOT use the USB port bring by your PC to be the independent power supply, otherwise it may damage your PC.,if you have any problem about the product,please feel to contaut us,we will reply you in 24 hours.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | RBSD |
| Power Source | Corded Electric |
| Colour | 50a |
| Item Weight | 151 Grams |
| Item dimensions L x W x H | 9 x 6.1 x 2.5 Centimeters |
| Min. Operating Voltage | 0.05 Volts (DC) |
| Upper Temperature Rating | 60 Degrees Celsius |
| Measurement Type | Ammeter, Voltmeter, Multimeter |
| Maximum Operating Voltage | 300 Volts |
| Manufacturer | RBSD |
| Model number | RBSD8m9qcavgfx-03 |
| Item Weight | 151 g |
| Product Dimensions | 9 x 6.1 x 2.5 cm; 151 g |
| Item model number | RBSD8m9qcavgfx-03 |
| Item Height | 2.5 Centimeters |
| Item Width | 6.1 Centimeters |
| Compatible Device | default |
| Included Components | inc |
| Are batteries included? | No |

## Product Details

- **Brand:** RBSD
- **Power Source:** Corded Electric
- **Colour:** 50a
- **Item Weight:** 151 Grams
- **Item dimensions L x W x H:** 9 x 6.1 x 2.5 Centimeters

## Images

![DC Communication Box, DC Current Voltage Power Energy Frequency Power Factor Communication Module Meter with RS485 USB Interface, High Precision Ammeter Voltmeter Multimeter(50A) - Image 1](https://m.media-amazon.com/images/I/61GWQDMxhoL.jpg)
![DC Communication Box, DC Current Voltage Power Energy Frequency Power Factor Communication Module Meter with RS485 USB Interface, High Precision Ammeter Voltmeter Multimeter(50A) - Image 2](https://m.media-amazon.com/images/I/61wktad9Y+L.jpg)
![DC Communication Box, DC Current Voltage Power Energy Frequency Power Factor Communication Module Meter with RS485 USB Interface, High Precision Ammeter Voltmeter Multimeter(50A) - Image 3](https://m.media-amazon.com/images/I/61pFn81a2DL.jpg)
![DC Communication Box, DC Current Voltage Power Energy Frequency Power Factor Communication Module Meter with RS485 USB Interface, High Precision Ammeter Voltmeter Multimeter(50A) - Image 4](https://m.media-amazon.com/images/I/51aDVDIFqHL.jpg)
![DC Communication Box, DC Current Voltage Power Energy Frequency Power Factor Communication Module Meter with RS485 USB Interface, High Precision Ammeter Voltmeter Multimeter(50A) - Image 5](https://m.media-amazon.com/images/I/51FGmvRX06L.jpg)

## Frequently Bought Together

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*Product available on Desertcart Egypt*
*Store origin: EG*
*Last updated: 2026-02-21*