--- product_id: 104267528 title: "1Pcs 20/24 Pin LCD Computer PC Power Supply Tester for ATX BTX ITX TFX SATA with Buzzer Automatic Alarm" brand: "comidox" price: "€ 29.00" currency: EUR in_stock: true category: "Comidox" url: https://www.desertcart.be/products/104267528-1pcs-20-24-pin-lcd-computer-pc-power-supply-tester store_origin: BE region: Belgium --- # High-precision LCD voltage display ±0.01V Supports 20/24 Pin ATX & multiple PSU types Automatic buzzer alarm for fault detection 1Pcs 20/24 Pin LCD Computer PC Power Supply Tester for ATX BTX ITX TFX SATA with Buzzer Automatic Alarm **Brand:** comidox **Price:** € 29.00 **Availability:** ✅ In Stock ## Summary > ⚡ Power up your diagnostics game — never miss a beat with precision and speed! ## Quick Answers - **What is this?** 1Pcs 20/24 Pin LCD Computer PC Power Supply Tester for ATX BTX ITX TFX SATA with Buzzer Automatic Alarm by comidox - **How much does it cost?** € 29.00 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/104267528-1pcs-20-24-pin-lcd-computer-pc-power-supply-tester) ## Best For - comidox enthusiasts ## Why This Product - Trusted comidox brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Instant Fault Alerts:** Built-in buzzer and flashing display warn you immediately when power supply values stray. - • **Multi-Interface Testing:** Supports 20/24 Pin, P4/P6/P8, SATA, IDE, PCI-E & floppy connectors for comprehensive diagnostics. - • **Pinpoint Voltage Accuracy:** Crystal-clear LCD shows real-time voltages with ±0.01V precision to catch every anomaly. - • **Universal PSU Compatibility:** Seamlessly tests ATX, BTX, ITX, TFX & SATA power supplies for all your builds. - • **Compact & Professional Design:** Sleek, lightweight tester fits perfectly on your desk or in your toolkit for quick, reliable checks. ## Overview The Comidox 20/24 Pin LCD Power Supply Tester is a compact, high-precision device designed to quickly and accurately test a wide range of computer power supplies including ATX, BTX, ITX, and TFX. Featuring a clear LCD display with ±0.01V accuracy and an automatic buzzer alarm, it instantly notifies users of voltage irregularities across multiple connectors such as SATA, PCI-E, and IDE. Ideal for professionals and enthusiasts, this tester ensures your PC power supply is performing optimally, preventing downtime and hardware damage. ## Description Specifications: Material: plastic + aluminum alloy Size: 126x64x18.5mm/4.95x2.51x0.72inch Weight: 120g Operation method: A. Plug the power supply 20PIN or 24PIN and P4, P6 or P8 into the corresponding position of the power tester. (If you plug in the 20PIN or 24PIN interface tester alarm and display LL, you need to plug in 4P! Please look for 4P must be inserted in the 4P position!) B. Turn on the power and “drip” sounds two sounds. If the values of each group are not flashing, it means that the power input is normal. C. If a circuit voltage signal is not detected (such as a 20PIN or 24PIN connector) or the detected voltage is out of the normal range, the buzzer will sound a "drip" warning for a long time, and the corresponding voltage or PG value will be displayed. If the status is flashing, it means the power supply is faulty! Note: The +3.3V light plugged into the SATA interface tester is not lit because the power SATA interface has 4 wires and 5 wires. First, make sure that your power SATA interface is 4 wires or 5 wires. If it is 4 Line, that is no +3.3V output, only 5 lines have +3.3V output. We highly appreciate all customers opinions to improve the selling, also if anything you unsatisfied, please contact us for probable best solution. Package Includes: 1Pcs ## Features - The LCD power tester is a powerful power test device. This power tester only needs to be connected to the ATX connector of the power supply to easily and intuitively know whether the output of each power supply is normal. It can detect ATX, BTX, ITX, TFX computer power supply, and can display various voltage and PG values in liquid crystal to quickly detect the performance of computer power supply. - The LCD displays various parameters such as output voltage and PG. When each parameter exceeds the normal value, the buzzer will sound a warning and the corresponding value will flash. - It can measure the voltage of each group of power supply 3.3V/+5V/+12V/-12V/SB+5V/PG, and also measure the output wire P4/P6/P8/SATA/IDE, external DIE/SATA/P6/P8 is the light Displayed, there is no LCD voltage. Only the 24pin or 20pin will have the LCD voltage. - It has LCD intuitive and accurate display voltage (+/-0.01V), automatic fault alarm, complete test interface, small and beautiful appearance, and many test functions. It is the best choice for quickly detecting PC power. - Support 20Pin, 24Pin ATX interface / SATA interface / 4Pin, 8Pin interface / PCI-E graphics card 6Pin interface / floppy drive interface / ATE hard disk interface. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07J9LRC6T | | Best Sellers Rank | #237 in Computer Power Supplies | | Brand | Comidox | | Brand Name | Comidox | | Color | Black | | Compatible Devices | Personal Computer | | Customer Reviews | 4.5 out of 5 stars 474 Reviews | | Manufacturer | Comidox | | Measurement Type | Voltmeter | | Part Number | CP218 | | Power Source | Corded Electric | | Style | Compact | | Style Name | Compact | | UPC | 661083376484 | | Unit Count | 1.0 Count | ## Product Details - **Brand:** Comidox - **Color:** Black - **Measurement Type:** Voltmeter - **Power Source:** Corded Electric - **Style:** Compact ## Images ![1Pcs 20/24 Pin LCD Computer PC Power Supply Tester for ATX BTX ITX TFX SATA with Buzzer Automatic Alarm - Image 1](https://m.media-amazon.com/images/I/41KJrJQZFxS.jpg) ![1Pcs 20/24 Pin LCD Computer PC Power Supply Tester for ATX BTX ITX TFX SATA with Buzzer Automatic Alarm - Image 2](https://m.media-amazon.com/images/I/61MSAh3fE6L.jpg) ![1Pcs 20/24 Pin LCD Computer PC Power Supply Tester for ATX BTX ITX TFX SATA with Buzzer Automatic Alarm - Image 3](https://m.media-amazon.com/images/I/51VAd2t8I3L.jpg) ![1Pcs 20/24 Pin LCD Computer PC Power Supply Tester for ATX BTX ITX TFX SATA with Buzzer Automatic Alarm - Image 4](https://m.media-amazon.com/images/I/51UX6pi+kcL.jpg) ![1Pcs 20/24 Pin LCD Computer PC Power Supply Tester for ATX BTX ITX TFX SATA with Buzzer Automatic Alarm - Image 5](https://m.media-amazon.com/images/I/61AKVk1DaiL.jpg) ## Frequently Bought Together - Comidox 1Pcs 20/24 Pin LCD Computer PC Power Supply Tester for ATX BTX ITX TFX SATA with Buzzer Automatic Alarm - Zhushan Wire Crimping Tool for Dupont, Molex, JST Terminals AWG24-16 (0.25-1.5mm²) - Professional Wire Crimper and Molex Crimper - Klein Tools 11061 Self-Adjusting Wire Stripper / Wire Cutter, Heavy Duty, for 10-20 AWG Solid, 12-22 AWG Stranded, and Romex Wire 12/2 and 14/3 --- ## 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.be/products/104267528-1pcs-20-24-pin-lcd-computer-pc-power-supply-tester](https://www.desertcart.be/products/104267528-1pcs-20-24-pin-lcd-computer-pc-power-supply-tester) --- *Product available on Desertcart Belgium* *Store origin: BE* *Last updated: 2026-07-07*