--- product_id: 807205747 title: "GY-471 MAX471 Voltage Current Sensor Module for Arduino AVR Tester Board 5V DC 3-25V 0-3A Resistive Voltage Divider" brand: "generic" price: "HK$86" currency: HKD in_stock: true category: "Generic" url: https://www.desertcart.hk/products/807205747-gy-471-max471-voltage-current-sensor-module-for-arduino-avr store_origin: HK region: Hong Kong --- # 3-25V voltage range 19.5x20.3mm compact size 0-3A current sensing GY-471 MAX471 Voltage Current Sensor Module for Arduino AVR Tester Board 5V DC 3-25V 0-3A Resistive Voltage Divider **Brand:** generic **Price:** HK$86 **Availability:** ✅ In Stock ## Summary > ⚡ Power Your Projects with Precision and Confidence! ## Quick Answers - **What is this?** GY-471 MAX471 Voltage Current Sensor Module for Arduino AVR Tester Board 5V DC 3-25V 0-3A Resistive Voltage Divider by generic - **How much does it cost?** HK$86 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/807205747-gy-471-max471-voltage-current-sensor-module-for-arduino-avr) ## Best For - generic enthusiasts ## Why This Product - Trusted generic brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Compact & Versatile:** Small 19.5x20.3mm footprint fits seamlessly into any Arduino or AVR project setup. - • **Robust Current Measurement:** MAX471 chip enables reliable current sensing from 0 to 3A, perfect for load diagnostics. - • **Plug-and-Play Compatibility:** Designed for 5V and 3.3V systems, ensuring broad integration with popular microcontrollers. - • **Precision Voltage Detection:** Resistive voltage divider scales input voltage by 5x for safe, accurate readings up to 25V. - • **High-Resolution Analog Output:** 10-bit ADC delivers ultra-fine voltage resolution of 0.02445V for detailed monitoring. ## Overview The GY-471 MAX471 Voltage Current Sensor Module is a compact, high-precision tool designed for Arduino and AVR boards. It accurately measures DC voltages from 3 to 25V and currents up to 3A using a resistive voltage divider and the MAX471 chip. With a 10-bit ADC resolution, it provides detailed analog readings, making it ideal for professional-grade electronics diagnostics and development. ## Description The module can be used to test current and voltage. The voltage test principle is designed based on the principle of a resistor divider, which can reduce the input voltage of the red terminal connector by 5 times. The analog input voltage is up to 5V, and the input voltage of the voltage detection module is not greater than 5Vx5=25V (if a 3.3V system is used, the input voltage is not greater than 3.3Vx5=16.5V). The AVR chip has a 10-bit AD, so the resolution of the module simulation is 0.00489V(5V / 1023), so the minimum voltage of the input voltage detection module is 0.00489 Vx5 = 0.02445V. The MAX471 chip on the board is used to test the current consumption of the load. Parameters: Test voltage range: DC3-25V (for Arduino working on 5V) or DC3-16.5V (working on 3.3V) Test current range: DC 0-3A Size: 19.5*20.3mm ## Features - GY-471 MAX471 Voltage Current Sensor Module For Arduino AVR Tester Board 5V DC 3-25V 0-3A Resistive Voltage Divider ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0CP789C3L | | Date First Available | November 30, 2023 | | Manufacturer | Generic | ## Images ![GY-471 MAX471 Voltage Current Sensor Module for Arduino AVR Tester Board 5V DC 3-25V 0-3A Resistive Voltage Divider - Image 1](https://m.media-amazon.com/images/I/51xURJmIj5L.jpg) ![GY-471 MAX471 Voltage Current Sensor Module for Arduino AVR Tester Board 5V DC 3-25V 0-3A Resistive Voltage Divider - Image 2](https://m.media-amazon.com/images/I/51uGe8hrkaL.jpg) ![GY-471 MAX471 Voltage Current Sensor Module for Arduino AVR Tester Board 5V DC 3-25V 0-3A Resistive Voltage Divider - Image 3](https://m.media-amazon.com/images/I/51DLw31aKrL.jpg) ![GY-471 MAX471 Voltage Current Sensor Module for Arduino AVR Tester Board 5V DC 3-25V 0-3A Resistive Voltage Divider - Image 4](https://m.media-amazon.com/images/I/511jm0T7qSL.jpg) ![GY-471 MAX471 Voltage Current Sensor Module for Arduino AVR Tester Board 5V DC 3-25V 0-3A Resistive Voltage Divider - Image 5](https://m.media-amazon.com/images/I/51YU1q2QBTL.jpg) --- ## 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.hk/products/807205747-gy-471-max471-voltage-current-sensor-module-for-arduino-avr](https://www.desertcart.hk/products/807205747-gy-471-max471-voltage-current-sensor-module-for-arduino-avr) --- *Product available on Desertcart Hong Kong* *Store origin: HK* *Last updated: 2026-05-26*