---
product_id: 294918611
title: "Extech Instruments DVA30 Non-Contact AC Voltage and Current Detector"
brand: "extech"
price: "฿9525"
currency: THB
in_stock: true
reviews_count: 5
url: https://www.desertcart.co.th/products/294918611-extech-instruments-dva30-non-contact-ac-voltage-and-current-detector
store_origin: TH
region: Thailand
---

# Extech Instruments DVA30 Non-Contact AC Voltage and Current Detector

**Brand:** extech
**Price:** ฿9525
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** Extech Instruments DVA30 Non-Contact AC Voltage and Current Detector by extech
- **How much does it cost?** ฿9525 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/294918611-extech-instruments-dva30-non-contact-ac-voltage-and-current-detector)

## Best For

- extech enthusiasts

## Why This Product

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

## Description

Extech Instruments DVA30 Non-Contact AC Voltage and Current Detector

## Features

- The only two-in-one current/voltage detector designed for electrical testing
- Non-contact AC voltage detection from 12 V to 600 VAC
- Non-contact AC current detection from 200 mA to 1000 A
- Sensitivity adjustments to increase or reduce sensor trigger threshold
- Current sensor detects current flow through shielded wires, conduit and metal circuit breaker/junction boxes

## Images

![Extech Instruments DVA30 Non-Contact AC Voltage and Current Detector - Image 1](https://m.media-amazon.com/images/I/412hBzISkJL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 







  
    Ottimo
  
  

*by L***E on Reviewed in Italy 🇮🇹 on 29 September 2019*

Ottimo per trovare cavi sotterranei corazzati

### ⭐⭐ 







  
  
    Nice concept but inconsistent readings.
  

*by O***Y on Reviewed in the United States 🇺🇸 on 11 May 2018*

I have used low cost voltage detectors for several years to find faults, but was excited to try this more expensive detector out on a dead outlet where my problem likely was going to be in a junction hidden behind drywall. The sensitivity was excellent, but not consistent or repeatable when I did some testing at a breaker panel. I discovered that I was getting readings on all the L1 side breakers of the standard 220 volt split phase panel, but not on the L2 side breakers. Very strange - the tester would read voltage on alternating breakers in the panel and dead on the L2 side ,with no change in the sensitivity adjustment. Checking further down the line of Romex feeds, I got the same type of readings. I double checked L1 and L2 with a good voltmeter, and both legs read exactly the same voltage. All circuits but one were actually good and the problem was down the line from the panel. All circuits tested good at the panel. Since a device that doesn't work all the time is worse than none at all, I decided to return it. Maybe you will have better luck, but I will go back to my tried and true (if not sensitive) voltage detectors.

### ⭐⭐ 







  
  
    not easy to tell if it's working
  

*by D***L on Reviewed in the United States 🇺🇸 on 19 December 2019*

don't like that it goes off when it's a foot or two away from the wires .Way to easy to get a false reading.It has adjustment  wheel switch that doesn't make a difference. still looking for one that works threw drywall.This one said it does but again I think I'm getting false readings.not impressed.

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**Shop now:** [https://www.desertcart.co.th/products/294918611-extech-instruments-dva30-non-contact-ac-voltage-and-current-detector](https://www.desertcart.co.th/products/294918611-extech-instruments-dva30-non-contact-ac-voltage-and-current-detector)

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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-02-21*