---
product_id: 2855239
title: "LCD Power Supply Tester PS-228"
brand: "coolmax"
price: "111186CFA"
currency: XOF
in_stock: true
reviews_count: 4
url: https://www.desertcart.sn/products/2855239-lcd-power-supply-tester-ps-228
store_origin: SN
region: Senegal
---

# Accurate Readings ±0.1V Large LCD Display 8-pin PCIe Connector LCD Power Supply Tester PS-228

**Brand:** coolmax
**Price:** 111186CFA
**Availability:** ✅ In Stock

## Summary

> 🔧 Power Up Your Diagnostics with Precision!

## Quick Answers

- **What is this?** LCD Power Supply Tester PS-228 by coolmax
- **How much does it cost?** 111186CFA with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/2855239-lcd-power-supply-tester-ps-228)

## Best For

- coolmax enthusiasts

## Why This Product

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

## Key Features

- • **💡 Bright & Clear:** Large, backlit LCD display for easy visibility in any lighting.
- • **⚙️ Next-Gen Ready:** Includes the latest 8-pin PCI-Express connector for modern setups.
- • **🔍 Precision Testing:** Experience accurate diagnostics with readings up to ±0.1V.
- • **🔗 Versatile Compatibility:** Works seamlessly with both 20-pin and 24-pin PSUs.
- • **🛠️ User-Friendly Design:** The simplest way to troubleshoot your PC power supply issues.

## Overview

The LCD Power Supply Tester PS-228 is a cutting-edge tool designed for PC enthusiasts and professionals alike. It features a large, backlit LCD display for clear readings, compatibility with both 20-pin and 24-pin power supply units, and introduces an 8-pin PCI-Express connector. With its ability to provide accurate voltage readings up to ±0.1V, this tester is the ultimate solution for diagnosing and troubleshooting power supply issues efficiently.

## Description

Coolmax Technology, Inc PS-228 Device Tester 14912 885

## Features

- Features Large, backlit LCD display
- Compatible with 20-pin and 24-pin PSUs
- Introduces the new 8-pin PCI-Express connector
- The easiest method to accurately test or diagnose faults with your PC Power Supply Unit
- Accurate readings up to +/- 0.1 V
- The easiest method to accurately test or diagnose faults with your PC Power Supply Unit
- Introduces the new 8-pin PCI-Express connector
- Accurate readings up to +/- 0.1 V
- Compatible with 20-pin and 24-pin PSUs
- Features Large, backlit LCD display

## Images

![LCD Power Supply Tester PS-228 - Image 1](https://m.media-amazon.com/images/I/91JgpONXEML.jpg)
![LCD Power Supply Tester PS-228 - Image 2](https://m.media-amazon.com/images/I/91Ma3qCA-mL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Works well - valuable troubleshooting tool
  

*by G***E on Reviewed in the United States on October 20, 2011*

I purchased this because I was having some strange computer problems and suspected the power supply. I got this one through Amazon.com because it was half the price of the identical unit at the local branch of a major computer parts chain. I won't go into operation and use of the unit because other reviewers (especially P.S. and R.W.) have already provided great detail. If you are troubleshooting a modern desktop computer power supply (ATX style) or an older AT style, you must have one of these. It is about as easy as it can get to operate: connect the motherboard and CPU power plugs to the tool, and disk drive and SATA power plugs if you want to test power for those as well. Then press and hold the button and read the display.One thing that is rarely mentioned is that the power supply must have correct load impedances attached before it can operate at all. That is a characteristic of all switching power supplies, not just these. A switching power supply is not like an older analog power supply. If you disconnect it from the motherboard and try to measure output voltages, the power supply probably will not be operating. This tester provides the correct loads and makes the measurements for you. Another set of measurements it makes are critical time intervals during start-up, and the regular "power OK" signal that has timing and level requirements. Without this tool, you would also need an oscilloscope for those measurements.I have not had any physical problems such as those shown in user photos (end caps coming off, for example.)The only complaint I gave is the labeling. The case is black plastic, and all of the legends and markings are just raised black-on-black lettering. (User photos here show white lettering, but mine looks like the primary product photo - just all black.) It makes things hard to read, especially for eyes that are more than six decades old. I know there are ways to make the letters more visible, but a brighter light was more convenient.I highly recommend this if you are working on desktop computer equipment.

### ⭐ 1.0 out of 5 stars







  
  
    Nice looking product and great but didn't work out of the package - CASE IS PLASTIC not aluminum as some reviews state
  

*by M***S on Reviewed in the United States on September 7, 2016*

I needed this to check a down computer to verify PS functioning. When it arrived I read the instructions (which are relatively clearly stated) and attempted to run the tests on the suspect failed power supply.  The screen of the tester lights up but there is no digital display.  Then I hooked up other connectors to the unit, one at a time as noted and got the LED lights on tester but no display data. Then I used the tester on a known working PS and received the same results. Immediately submitted a return request to Amazon and was advised that the return had to come from the shipper not Amazon and would take up to 48 hours for any answer. In the mean time I still have no way to test a PS other than the multi-ohm meter.  This really looks like it has the potential to be a viable product and I was excited to add it to my box.  But now I have wasted the shipping time and the return time, realizing I would have been better off buying from a local supplier.

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    coolmax LCD tested PS-228
  

*by D***) on Reviewed in the United States on August 23, 2011*

Delivered in a timely manner, professionally packaged and in perfect condition. A real time saver and at a very reasonable rate. Priced one similar on another web site and it was almost 5 times higher and couldn't as much as the PC-228 can. It would a mistake to pass this merchant up when shopping, their merchandise is the very top end and the cutting edge of technology. No cheap stuff at this merchants site, a sure enough addition for your "favorites"Will be back every time I log on.Dana Gillespie

---

## 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.sn/products/2855239-lcd-power-supply-tester-ps-228](https://www.desertcart.sn/products/2855239-lcd-power-supply-tester-ps-228)

---

*Product available on Desertcart Senegal*
*Store origin: SN*
*Last updated: 2026-02-20*