--- product_id: 692303854 title: "DONGKER 8-Channel Optocoupler Isolation Board, Dc 3.3V 5V Driver Photoelectric Isolated Module Pnp Npn Signal Converter Low High Level Output 1 Piece Red" brand: "dongker" price: "₨16864" currency: LKR in_stock: true reviews_count: 5 url: https://www.desertcart.lk/products/692303854-dongker-8-channel-optocoupler-isolation-board-dc-3-3v-5v store_origin: LK region: Sri Lanka --- # Supports DC 3.3V-5V input & 1.8V-24V load 8-Channel input/output Optocoupler isolation for signal integrity DONGKER 8-Channel Optocoupler Isolation Board, Dc 3.3V 5V Driver Photoelectric Isolated Module Pnp Npn Signal Converter Low High Level Output 1 Piece Red **Brand:** dongker **Price:** ₨16864 **Availability:** ✅ In Stock ## Summary > 🛠️ Power your projects with precision and protection! ## Quick Answers - **What is this?** DONGKER 8-Channel Optocoupler Isolation Board, Dc 3.3V 5V Driver Photoelectric Isolated Module Pnp Npn Signal Converter Low High Level Output 1 Piece Red by dongker - **How much does it cost?** ₨16864 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/692303854-dongker-8-channel-optocoupler-isolation-board-dc-3-3v-5v) ## 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 - • **Compact & Durable Design:** Small footprint (7.2x7.2x2.7 cm) with wide operating temperature (-20℃ to 85℃) and humidity tolerance for reliable performance in any environment. - • **Dual Signal Output Modes:** Switch between NPN and PNP (Low/High level) outputs to perfectly match your device requirements. - • **Seamless 8-Channel Control:** Manage multiple signals effortlessly with 8 isolated channels for precise input/output handling. - • **Robust Isolation Technology:** Optocoupler isolation ensures noise-free, interference-resistant signal transmission—critical for professional-grade control systems. - • **Universal Voltage Compatibility:** Works flawlessly with DC 3.3V to 5V inputs and supports load voltages from 1.8V up to 24V—flexibility that fits your system. ## Overview The DONGKER 8-Channel Optocoupler Isolation Board is a compact, versatile module designed for professional control systems. It supports DC 3.3V to 5V inputs and load voltages from 1.8V to 24V, offering both NPN and PNP output modes. Featuring optocoupler isolation, it ensures clean, interference-free signal transmission across 8 channels, making it ideal for PLC systems, device alarms, and DC power detection in demanding environments. ## Description Description: It is a DC 3.3V 5V 8-Channel Optocoupler Isolation Module. It can detect 8-Channel DC input power sources and output DC voltage according to the detection results. The output results can be applied to PLC system and other control equipment. It can detect whether there is input power. The output status will change when the input power is detected. Features: 1. Optocoupler isolation control. 2. 8-Channel input and output. 3. NPN / PNP (Low/High level) signal output. 4. Support DC 3.3V5V Input. 5. DC 1.8V-24V load voltage Specification: Product name: DC 3.3V 5V 8-Channel Optocoupler Isolation Module Input Voltage: DC 3.3V5V Load Input Voltage: DC 1.8V24V Output type: NPN / PNP (Low/High level) signal output Output current: 50mA Work Temperature: -20℃85℃ Work Humidity: 10%85%RH Size: 725027mm Application: 1. DC power detection. 2. PLC control system. 3. Device alarm. Package list : 1pcs DC 3.3V 5V 8-Channel Optocoupler Isolation Module. ## Features - Optocoupler isolation control. - 8-Channel input and output. - NPN / PNP (Low/High level) signal output. - Support DC 3.3V5V Input. - DC 1.8V-24V load voltage. ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B08LYQQ7X6 | | Date First Available | 20 January 2024 | | Item Model Number | 1 | | Manufacturer | DONGKER | | Product Dimensions | 7.2 x 7.2 x 2.7 cm; 41 g | ## Product Details - **Brand:** DONGKER - **Manufacturer:** DONGKER - **Number of contacts:** 8 - **UPC:** 770264202464 ## Images ![DONGKER 8-Channel Optocoupler Isolation Board, Dc 3.3V 5V Driver Photoelectric Isolated Module Pnp Npn Signal Converter Low High Level Output 1 Piece Red - Image 1](https://m.media-amazon.com/images/I/31458O5WEVL.jpg) ![DONGKER 8-Channel Optocoupler Isolation Board, Dc 3.3V 5V Driver Photoelectric Isolated Module Pnp Npn Signal Converter Low High Level Output 1 Piece Red - Image 2](https://m.media-amazon.com/images/I/51apPXCVZNL.jpg) ![DONGKER 8-Channel Optocoupler Isolation Board, Dc 3.3V 5V Driver Photoelectric Isolated Module Pnp Npn Signal Converter Low High Level Output 1 Piece Red - Image 3](https://m.media-amazon.com/images/I/71YOydhy-WL.jpg) ![DONGKER 8-Channel Optocoupler Isolation Board, Dc 3.3V 5V Driver Photoelectric Isolated Module Pnp Npn Signal Converter Low High Level Output 1 Piece Red - Image 4](https://m.media-amazon.com/images/I/61+Owawu5UL.jpg) ![DONGKER 8-Channel Optocoupler Isolation Board, Dc 3.3V 5V Driver Photoelectric Isolated Module Pnp Npn Signal Converter Low High Level Output 1 Piece Red - Image 5](https://m.media-amazon.com/images/I/51p9GOThz-L.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ FAR SUPERIOR *by on Reviewed in the United States 5 November 2025* These octopus couplers are far superior to the old individual ones ### ⭐⭐⭐⭐⭐ muy conforme *by on Reviewed in the United States 20 August 2025* excelente producto ### ⭐⭐⭐⭐⭐ Much more compact that 8 individual Iso-optocouplers *by on Reviewed in the United States 3 August 2024* Device is as expected. A must for my Beagle Bone system. I fried my first BBONE because I failed to Isolate the IO. ## Frequently Bought Together - DONGKER Optocoupler Isolation Board,DC 3.3V 5V PNP NPN 8-Channel Signal Converter Opto Voltage Isolation Module - 5V 5A Power Supply,25W Universal Regulated Switching Power Converter Adapter Transformer for LED Strip Light,Probe Signal Lamp,CCTV, Radio, Computer Project - MILAPEAK 10pcs (5 Sets) 6 Positions Dual Row 600V 25A Screw Terminal Strip Blocks with Cover + 400V 25A 6 Positions Pre-Insulated Terminals Barrier Strip (Black & Red) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.lk/products/692303854-dongker-8-channel-optocoupler-isolation-board-dc-3-3v-5v](https://www.desertcart.lk/products/692303854-dongker-8-channel-optocoupler-isolation-board-dc-3-3v-5v) --- *Product available on Desertcart Sri Lanka* *Store origin: LK* *Last updated: 2026-09-11*