---
product_id: 23220657
title: "Extech 382202 Digital Single Output DC Power Supply 18V and 3A"
brand: "extech"
price: "HK$2098"
currency: HKD
in_stock: true
reviews_count: 13
url: https://www.desertcart.hk/products/23220657-extech-382202-digital-single-output-dc-power-supply-18v-3a
store_origin: HK
region: Hong Kong
---

# 0-18V Output Dual LCD Display 3A Current Extech 382202 Digital Single Output DC Power Supply 18V and 3A

**Brand:** extech
**Price:** HK$2098
**Availability:** ✅ In Stock

## Summary

> 🔌 Power Your Potential with Precision!

## Quick Answers

- **What is this?** Extech 382202 Digital Single Output DC Power Supply 18V and 3A by extech
- **How much does it cost?** HK$2098 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/23220657-extech-382202-digital-single-output-dc-power-supply-18v-3a)

## Best For

- extech enthusiasts

## Why This Product

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

## Key Features

- • **Safety First:** Equipped with short circuit and overload protection for peace of mind.
- • **Stay Informed:** Dual backlit LCD displays provide real-time voltage and current readings.
- • **Precision Performance:** Load regulation of 0.01% + 2mV ensures consistent voltage delivery.
- • **Power Up Your Projects:** Adjustable output from 0 to 18V and 0 to 3A for versatile applications.
- • **Universal Compatibility:** Operates seamlessly from 120VAC ±10%/60Hz for global use.

## Overview

The Extech 382202 Digital Single Output DC Power Supply delivers adjustable voltage and current, featuring dual LCD displays for easy monitoring, robust safety features, and exceptional load regulation, making it an essential tool for professionals and hobbyists alike.

## Description

From the Manufacturer          DC power supply provides adjustable 0 to 18V and 0 to 3A output. Features dual backlit LCD displays for current and voltage and short circuit and overload protection. Operates from 120VAC ±10%/60Hz power source. Banana plug outputs.

## Features

- Adjustable 0 to 18V and 0 to 3A output
- Dual backlit LCD displays for voltage and current
- Short Circuit and overload protected
- Load regulation 0.01% + 2mV for constant voltage and 0.2% +3mA for constant current
- Operates from 120VAC ±10%/60Hz

## Images

![Extech 382202 Digital Single Output DC Power Supply 18V and 3A - Image 1](https://m.media-amazon.com/images/I/81HAbUTPjhL.jpg)

## Available Options

This product comes in different **Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    This is a solid supply.  Review of the 600w - 30v/20a model
  

*by T***M on Reviewed in the United States on July 28, 2023*

Check the reviews when you're looking at this listing, because the different supplies are different.This unit is solid.  It's a single voltage, high current supply.  The voltage and current adjustment is digital, even though it's done with a turning knob.  It's easy to adjust to within .1 v above 3 volts, and that's perfect for a high current supply.  Current limit works well, and it'll show you the voltage that it limits to when it's in CC mode.  For testing things designed to run on nominal 12VDC power, it's pretty perfect.The only negatives are a bit minor.  There's no output switch.  The rear binding posts are solid, but they don't have a through hole for smaller gauge wire.  For the power and quality, I think this is the best high current bench supply out there.  I'm in no way sponsored...paid full price just like everyone else.

### ⭐⭐⭐ 3.0 out of 5 stars







  
  
    Okay, but was hoping it was a little better...
  

*by T***L on Reviewed in the United States on March 3, 2011*

Bought this unit thinking that it would be good to have for electronic experimenting. When it arrived, I plugged it in, the screen lit up, but the lower display (for Amps) was completely blank. The power supply seemed to function fine and both the Volt and Amp control dials limited voltage and current respectively, but the amp display was DOA.I emailed Extech and got two different answers from tech support. One said I had to send it back to Amazon for an exchange (ugh, really?) and the other said I had to send it in and pay $50 to fix it. (seriously? I just bought this thing!) Neither sounded like great options, so I just sent it back to Amazon as "defective" and got a refund instead.For the few days that I did have it, I was able to make a few observations:- The control dials are kinda sensitive. It's easy to nudge the voltage control and have the voltage change 0.5 volts.- The readouts aren't very precise: 0.1 volt and 10mA increments. (0.01v and 1ma increments would be nicer.)- For example, you could dial up 2.0v, but really be at something like 2.045 volts.- No "lock" feature. Since the control dials are so "fiddly", it would be nice to be able to dial-up a voltage, then push a button to "lock" the voltage in place.All negative points aside, the unit seemed really solid. Voltage out seemed steady (although I didn't have a scope, so I can't tell you if their ripple specs are accurate or not.)I gave it 3 stars. It's a decent unit, but the design could be better. (fiddly controls? well, at least give me a "lock" switch.) Maybe I was just unlucky getting a malfunctioning display, but maybe their quality control isn't as good as it should be.

### ⭐⭐⭐⭐ 4.0 out of 5 stars







  
  
    Nice but wish the amp output was higher
  

*by A***D on Reviewed in the United States on February 21, 2016*

I like it, and it works very well.  ...I wish the limiting circuit went up to 20 amps, as opposed to 3 amps, but it is pretty clearly stated in the product description so I can't really complain too much.  I will need to get another power supply with a higher amp output.  Probably an 18v 20amp model, which is a bit pricier but not too much more.  Also, it would've been nice if they gave a little more instruction on operation.  This was my first bench power supply and took me awhile to figure out how to set the amp limiter.  ...at first it made no sense, as I could spin the amp knob and it appeared as though nothing was happening.  After playing with it and searching online a bit, I found out you set the volts first, then you short the red black connectors by touching or clamping them together.  Then you will see the amps on the digital display and can dial in what you need.  Just me being a novice I suppose, didn't realize these things were designed such that you could safely short them like that.

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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-02-20*