---
product_id: 185447646
title: "4 Bit Optocoupler Isolator Module,PLC Signal Level Voltage Converter Board Module (3.3V to 24V)"
brand: "dongker"
price: "€ 30.68"
currency: EUR
in_stock: true
reviews_count: 5
category: "Dongker"
url: https://www.desertcart.at/products/185447646-4-bit-optocoupler-isolator-module-plc-signal-level-voltage-converter
store_origin: AT
region: Austria
---

# 80kHz high-speed conversion 4-channel LED status indicators 3.3V to 24V seamless voltage shift 4 Bit Optocoupler Isolator Module,PLC Signal Level Voltage Converter Board Module (3.3V to 24V)

**Brand:** dongker
**Price:** € 30.68
**Availability:** ✅ In Stock

## Summary

> 🔌 Power up your signal game with precision and clarity!

## Quick Answers

- **What is this?** 4 Bit Optocoupler Isolator Module,PLC Signal Level Voltage Converter Board Module (3.3V to 24V) by dongker
- **How much does it cost?** € 30.68 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.at](https://www.desertcart.at/products/185447646-4-bit-optocoupler-isolator-module-plc-signal-level-voltage-converter)

## Best For

- dongker enthusiasts

## Why This Product

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

## Key Features

- • **Instant Visual Feedback:** Integrated LED indicators on each channel keep you in control with real-time operational status.
- • **Trusted Quality Assurance:** Backed by a 5-star user rating and dedicated support to ensure your project never misses a beat.
- • **Compact & Mount-Ready Design:** Slim 72x55x18mm footprint with precise mounting holes for seamless integration into your control panels.
- • **High-Frequency Signal Isolation:** Experience ultra-responsive 80kHz conversion for noise-free, reliable PLC communication.
- • **Versatile Voltage Compatibility:** Effortlessly convert and isolate signals from 3.3V up to 24V, perfect for diverse industrial setups.

## Overview

The 4 Bit Optocoupler Isolator Module by DONGKER is a compact, high-speed signal isolator and voltage converter designed for industrial PLC applications. Supporting signal level conversion from 3.3V to 24V with an 80kHz frequency, it features 4 LED indicators for easy status monitoring and a mount-friendly design, ensuring reliable performance in noisy environments.

## Description

Product Description

Review: Pricy but it works - Not cheap for what it is but did the job I bought it for great (adding some buttons to an ESP32 with long cables in a noisy environment).
Review: Easy connection - This unit will control other sets of LEDs that require a higher amperage than my led circuit could deliver.

## Features

- WIDELY USED: It can be used for signal isolation, PLC signal level converting, PNP/NPN signal to NPN signal and signal level voltage converter.
- EASIER TO RECOGNISE: Each channel has been equipped with indicator which is easier to recognise the working status.
- CONVERSION FREQUENCY: 80KHZ.
- SIZE: 72*55*18mm. Mounting Hole Size: 64*47mm, diameter 3mm.
- QUALITY ASSURANCE: To provide you with the highest quality assurance, if you are not satisfied with the product, please contact us.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07Y8LNQ4M |
| Best Sellers Rank | 59,241 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 21 in Optocouplers |
| Box Contents | inc |
| Brand | DONGKER |
| Brand Name | DONGKER |
| Colour | 3.3 V to 24 V |
| Compatible Devices | Monitors |
| Compatible Power Plug Type | Type C |
| Compatible devices | Monitors |
| Connectivity Technology | Power cable |
| Connector Type | USB |
| Connector type | USB |
| Country of Origin | China |
| Current Type | direct current |
| Customer Reviews | 5.0 out of 5 stars 16 Reviews |
| Enclosure Material | Plastic |
| Form Factor | module or card |
| Frequency Range | 20 kHz |
| Included components | inc |
| Input Voltage | 24 Volts |
| Item Weight | 0.03 Kilograms |
| Main Power Connector Type | Electrical socket |
| Manufacturer | AILOVA |
| Manufacturer Part Number | 1 |
| Model Number | 1 |
| Mounting Type | Wall Mount |
| Number of Items | 1 |
| Number of Power Levels | 1 |
| Output Voltage | 24 Volts |
| Portable | No |
| Power Plug Type | No Plug |
| Power Source | Electric Cord |
| Product Features | Fast Charging |
| Special feature | Fast Charging |
| Specification Met | Ma |
| UPC | 778836797875 774827528039 |
| Wired Charging Connector Type | USB Type A |

## Product Details

- **Brand:** DONGKER
- **Connector type:** USB
- **Compatible devices:** Monitors
- **Included components:** 1 x signal level converter plate for PLC
- **Special feature:** Schnellladung
- **Colour:** 3.3 V to 24 V
- **Input voltage:** 24 Volts
- **Number of items:** 1
- **Specification met:** Ma
- **Material:** Plastic

## Images

![4 Bit Optocoupler Isolator Module,PLC Signal Level Voltage Converter Board Module (3.3V to 24V) - Image 1](https://m.media-amazon.com/images/I/61d42RaO3sL.jpg)
![4 Bit Optocoupler Isolator Module,PLC Signal Level Voltage Converter Board Module (3.3V to 24V) - Image 2](https://m.media-amazon.com/images/I/51E3qXQc44L.jpg)
![4 Bit Optocoupler Isolator Module,PLC Signal Level Voltage Converter Board Module (3.3V to 24V) - Image 3](https://m.media-amazon.com/images/I/51yJ7jEbw7L.jpg)
![4 Bit Optocoupler Isolator Module,PLC Signal Level Voltage Converter Board Module (3.3V to 24V) - Image 4](https://m.media-amazon.com/images/I/41AAK+O9JdL.jpg)
![4 Bit Optocoupler Isolator Module,PLC Signal Level Voltage Converter Board Module (3.3V to 24V) - Image 5](https://m.media-amazon.com/images/I/71IhRV7CH0L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Pricy but it works
*by L***E on 13 June 2024*

Not cheap for what it is but did the job I bought it for great (adding some buttons to an ESP32 with long cables in a noisy environment).

### ⭐⭐⭐⭐⭐ Easy connection
*by B***B on 5 October 2022*

This unit will control other sets of LEDs that require a higher amperage than my led circuit could deliver.

### ⭐⭐⭐⭐⭐ Handy, cheap!
*by A***E on 10 March 2022*

Opto isolation is a really good idea when working on electronics where there is a hot side, something with a higher voltage than your logic side. Optos use a light emitter and photodiode encased inside the chip, in this case the circuit offers an isolation from 3.3V to 24V, in practical terms you can use this connected up to an output on day a raspberry pi (or pico) and use it to turn on or off something that is powered by 12V, safely, there is. I physical connection between the 3.3V and 24V side. When you drive the 3.3V side, the led inside the chip turns on and the photodiode detects this and allows the 12V to flow through the chip, effectively allowing you to turn on and off a 24V signal from a 3.3V signal. The Advantage of using a opto is that even in the case of some short circuit or surge, the hot side cannot damage the low side, until you get up to several kilovolts where the current may jump. This board is available in a number of different versions, changing any given level to another, this board is the 3.3 to 24 volt version, but if you need a mix you can actually remove the resistor on the side you want to change, and make it operate with different voltages, it’s very easy to do. These boards are really cheap and there’s not really a whole lot else to say, they’re good value for money and they do exactly what they do, isolate signals!

## Frequently Bought Together

- 4 Bit Optocoupler Isolator Module,PLC Signal Level Voltage Converter Board Module (3.3V to 24V)
- 4 Bit Optocoupler Isolator, PLC Signal Level Voltage Converter Board Module (24V to 3.3V)

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*Product available on Desertcart Austria*
*Store origin: AT*
*Last updated: 2026-07-27*