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Extech EX330 12-Function Mini Multi-Meter Plus Non-Contact Voltage Detector,Green/Orange

4.4 4.4 out of 5 stars 825 ratings
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Brand Extech
Power source Battery Powered
Style Basic,Protective
Colour Green/Orange
Item weight 0.28 Kilograms

About this item

  • Autoranging DMM with 12 functions and 0.5% basic accuracy
  • AC/DC Voltage & Current, Resistance, Capacitance, Frequency, Temperature, Duty Cycle, Diode/Continuity
  • Built-in non-contact AC voltage detector (NCV) with red LED indicator and audible beeper
  • Large-digit 4,000 count LCD display
  • 10A max Current
› See more product details

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Product Safety

This product is subject to specific safety warnings

  • Warning:Not suitable for children under 14 years. For use under adult supervision

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Extech EX330 12-Function Mini Multi-Meter Plus Non-Contact Voltage Detector,Green/Orange

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From the manufacturer

Overview

Teledyne FLIR designs, develops, manufactures, markets, and distributes technologies which enhance perception and awareness. We bring innovative sensing solutions into daily life through our thermal imaging, visible-light imaging, video analytics, measurement and diagnostic, and advanced threat detection systems.

About Us

Teledyne FLIR offers a diversified portfolio which serves a number of applications in government and defense, industrial, and commercial markets. Our products help first responders and military personnel protect and save lives, promote efficiency within the trades, and good technologies.

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Customer reviews

4.4 out of 5 stars
825 global ratings

Customers say

Customers like the functionality, value for money, and display quality of the electric circuit testing device. They mention it suits their needs very well, is solid, and reliable. Some are satisfied with its ease of use, slickness, and voltage detection. However, some customers disagree on its accuracy.

AI-generated from the text of customer reviews

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FunctionalityValue for moneyBuild qualityDisplay qualityEase of useSlicknessVoltage detectionAccuracy
30 customers mention ‘Functionality’30 positive0 negative

Customers are satisfied with the functionality of the product. They mention it's useful, suits their needs very well, and feels sturdy.

"...5. Relatively accurate . All around very nice DMM with good functionality from respectable brand ." Read more

"...Fast autoranging. I rarely use manual mode. No useless additional modes. Cons: No backlight makes it's use a bit limited." Read more

"...For the price, Just a bit over £40 I can safely say that this is a decent meter; but just think weather you really want an autorange this slow, I..." Read more

"...through the current function but it handled it well and still works just fine...." Read more

20 customers mention ‘Value for money’18 positive2 negative

Customers appreciate the value for money of the electric circuit testing device. They mention it's accurate and a good choice.

"...This device is worth every penny. Pros: Very good build quality. Compact size (compared to similar devices)...." Read more

"+Inexpensive. +NCV detector a bonus. +Good overall feature set...." Read more

"Great little meter for the money. Accidentally shorted out mains through the current function but it handled it well and still works just fine...." Read more

"...Otherwise a very good value choice" Read more

19 customers mention ‘Build quality’16 positive3 negative

Customers like the build quality of the electric circuit testing device. They mention it's solid, reliable, and trustworthy. Some also say it's a good product from a respected brand.

"...On positive side . 1.It feel well built, solid. 2.Has nice display. 3.Has compact size 4.Fells good in the hands 5...." Read more

"...This device is worth every penny. Pros: Very good build quality. Compact size (compared to similar devices)...." Read more

"...It may not be faultless; but it is safe, reliable and trustworthy. What else would you look for in a basic multimeter?" Read more

"...Accidentally shorted out mains through the current function but it handled it well and still works just fine...." Read more

4 customers mention ‘Display quality’4 positive0 negative

Customers are satisfied with the display quality of the electric circuit testing device. They mention it has a nice display, is compact, and feels good in their hands. Customers also appreciate the high contrast and good viewing angle.

"...On positive side . 1.It feel well built, solid. 2.Has nice display. 3.Has compact size 4.Fells good in the hands 5...." Read more

"...Compact size (compared to similar devices). Good display readability. Fast autoranging. I rarely use manual mode...." Read more

"...+High contrast display and good viewing angle. +Manual Range button...." Read more

"...good, in that it is robust, easy to use one-handed and has a quick clear display...." Read more

4 customers mention ‘Ease of use’4 positive0 negative

Customers find the electric circuit testing device easy to use. They mention the instructions are clear and informative.

"...a bit over complex for the DIYer and this one was probably the easiest one to read and not quite such a 'Sledge hammer to crack a nut' scenario" Read more

"Easy to use and convenient to store" Read more

"...It also has many more features. The instruction manual is clear and informative. My only comment is the leads / probes...." Read more

"Early days, but seem well made and easy to use." Read more

4 customers mention ‘Slickness’4 positive0 negative

Customers appreciate the slickness of the product. They mention it's a nice DMM with good functionality from a respectable brand.

"...5. Relatively accurate . All around very nice DMM with good functionality from respectable brand ." Read more

"...Supplied probes are nice and sharp and work OK." Read more

"Very Slick..." Read more

"It's a nice DMM...." Read more

4 customers mention ‘Voltage detection’4 positive0 negative

Customers like the voltage detection of the electric circuit testing device. They say it's perfect for checking for hidden voltages on a boiler casing. The sensitivity makes it useful for checking for live cables in walls.

"...has "just right" sensitivity to make it useful for checking for live cables in walls and just before opening the cover!..." Read more

"been a heating engineer, the NCV facility is perfect to check for hidden voltages on a boiler casing before i start work on it...." Read more

"As i expected, good device. Nice the Voltage detector, very usefull!" Read more

"Basic, reliable multimeter, NCV detection a big bonus...." Read more

6 customers mention ‘Accuracy’3 positive3 negative

Customers have mixed opinions about the accuracy of the electric circuit testing device. Some mention it's relatively accurate, while others say it gives bad readings and initially overshoots when taking measurements.

"...3.Has compact size 4.Fells good in the hands 5. Relatively accurate ...." Read more

"...problem I've experienced so far is that a few times it has given me bad readings until I turned it off and on again." Read more

"...23, ScopeMeter 95 and an AVO and can confirm this is indeed and accurate meter. +Consistent readings on top of accuracy...." Read more

"...The accuracy was out by 0.22V. Considering I was trying to use it for battery balancing then this is a big deal. Would not recommend." Read more

Arrived complete with dirt and dust under the LCD. ...
1 out of 5 stars
Arrived complete with dirt and dust under the LCD. ...
Arrived complete with dirt and dust under the LCD. Feels light and cheap plastic finish. Had scuffs and scratches. Obviously no quality control for the outside so why should you trust the inside of the device? The LCD rainbows even with the slightest pressure on the screen. Junk. Avoid.
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Top reviews from United Kingdom

Dark Chocolate
5.0 out of 5 stars Good DMM
Reviewed in the United Kingdom on 13 June 2014
Verified Purchase
I have used this for only few days and its my first ever DMM , but from my few day experience I would like to highlight some negative aspects .

1. For the price you would expect carrying case .
2. Center dial could be better .
3. Would like to see included alligator clips.
4. Stand is there but not as stable as you would want . I could not change mode without MM sliding all over the table while in stand mode. And without stand it also tends to slide all around place. Could be because stand made from plastic but rest of the holster is rubber.

I think these are minor cons considering the price .

On positive side .

1.It feel well built, solid.
2.Has nice display.
3.Has compact size
4.Fells good in the hands
5. Relatively accurate .

All around very nice DMM with good functionality from respectable brand .
4 people found this helpful
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S. Wolfy
5.0 out of 5 stars Extremely well done multimeter
Reviewed in the United Kingdom on 6 June 2013
Verified Purchase
I had a number of failures while looking for a good multimeter in a low-mid price range. This device is worth every penny.

Pros:
Very good build quality.
Compact size (compared to similar devices).
Good display readability.
Fast autoranging. I rarely use manual mode.
No useless additional modes.

Cons:
No backlight makes it's use a bit limited.
2 people found this helpful
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Curtis R
4.0 out of 5 stars Good general-purpose meter.
Reviewed in the United Kingdom on 3 March 2014
Verified Purchase
+Inexpensive.
+NCV detector a bonus.
+Good overall feature set.
+Compared readings with a Fluke 87-5, Fluke 23, ScopeMeter 95 and an AVO and can confirm this is indeed and accurate meter.
+Consistent readings on top of accuracy.
+Solid Build Quality.
+Good Internal construction & design (Ignoring a few through-hole components).
+Included Probes are adequate enough for light use.
+Nice Thermocouple adapter is included to convert the probe sockets to a standard K-type.
+High contrast display and good viewing angle.
+Manual Range button.

-Seemed to stop beeping after being unused for a few weeks, opened it up and gave it a solder reflow and that fixed it. Shouldn't have needed to be done in the first place though.
-Fuses arn't HRC, just some cheap glass ones. (*That shatter into hundreds of shards under a 'high-energy mishap')
-Fuses difficult to replace as there is not much space to get at them (assuming you ever need to replace them)
-Stand is pretty poor (just chuck it on the bench or prop it up with something else)
-(FIXED) Occasionally crashes when measuring current, not sure if this is just my unit or is a design fault.
-Initially overshoots when taking measurements
-SLOW AUTORANGING, It really is the only thing that lets this otherwise brilliant meter down

Additional:
~Couldn't find much information regarding the Frequency measurements, but worked well enough on my signal generator and I can confirm that it will accept mains voltage without problem. I have not tested the Duty Cycle feature so cannot comment on its performance.
~Tested it with 12v on the Ohm Range, it didn't like it and displayed the low battery icon. When I reversed the polarity, it just tried to auto-range. Not the best result by far, but at least it survived the ordeal. I would be very hesitant to put any more pressure on it, so definitely get the right mode and double check before doing anything higher

For the price, Just a bit over £40 I can safely say that this is a decent meter; but just think weather you really want an autorange this slow, I mean 3~4 seconds for a quick resistance test? It's painful. I believe that there is a manual range only version for quite some money off too, and I would beg you to at least consider it before making your purchase.

**********************UPDATE 27/05/14********************************

Wow, I suppose it is easy to make mistakes...
In short, It was late and I wasn't thinking straight. I just went to check on the mains voltage as I was having problems with a linear transformer and kablooey. Mains right down the 10A current socket. To my surprise, the meter was still alive after the ordeal, and all that it needed was a quick cleanup and a new fuse! The MOV didn't explode and everything is still working in tip-top condition.

While cleaning up the meter, I thought I would take it fully apart and have a look-see if there was any damage anywhere. While in there, I cleaned the contacts on the rotary switch with some alcohol and tightened everything back up. Upon testing all the modes I found that it no longer locked up, turned off or did any other 'weird stuff' that it did before while switching through the current and resistance positions, so it must have just been a dodgy unit to start off with.

Update & conclusion:
At first I was skeptical of the long-term build quality and protection offered by this meter, but the truth is this is a top quality test instrument that you should be proud to own. It will, for as long as it lives, be my first choice- the one you grab when you need to take a quick measurement. It may not be faultless; but it is safe, reliable and trustworthy. What else would you look for in a basic multimeter?
28 people found this helpful
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Luke Wren
5.0 out of 5 stars Buying a second one after 10 years
Reviewed in the United Kingdom on 26 September 2024
Verified Purchase
I got one of these for Christmas a little over 10 years ago. That one is still going strong, it's just I keep bringing it into the office and leaving it there, so I bought a second one for home!
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Dr. David Wesley Charlton
5.0 out of 5 stars Great for the money!
Reviewed in the United Kingdom on 20 October 2016
Verified Purchase
Great little meter for the money. Accidentally shorted out mains through the current function but it handled it well and still works just fine. Temperature probe is nice to have and the Non contact voltage detector has "just right" sensitivity to make it useful for checking for live cables in walls and just before opening the cover!
Supplied probes are nice and sharp and work OK.
2 people found this helpful
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CC-C
5.0 out of 5 stars Easier for the DIYer
Reviewed in the United Kingdom on 20 April 2024
Verified Purchase
I had an old meter which basically just told you if a wire was live on the mains or just measured the volts in a battery and tested circuits, however after 20 years it gave up. I found just about all of the newer meters a bit over complex for the DIYer and this one was probably the easiest one to read and not quite such a 'Sledge hammer to crack a nut' scenario
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Glu3
3.0 out of 5 stars Poor LCD - Bad connection - Not usable
Reviewed in the United Kingdom on 29 January 2020
Verified Purchase
The media could not be loaded.
It works fine, except the poor LCD that not readable at an angle. It is embarrassed sitting next to the Fluke of my colleague.
---------
Update after a month use:
There are two issues below and I decided to return it to buy a Fluke.
- The socket for red lead have poor connection, see the video
- The beeping continuity function works in a weird way, when it detect a closed circuit, it will beep two shorts and and then constantly beep. It always like this. I swap another set of lead in to make sure it isn't about the poor connection. I also put a fresh battery set in but it the problem persists.
3 people found this helpful
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Tony O.
5.0 out of 5 stars Good value
Reviewed in the United Kingdom on 24 December 2020
Verified Purchase
Easy to use and convenient to store
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Top reviews from other countries

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ADOLFO SANCHEZ TREJO
5.0 out of 5 stars Excelente
Reviewed in Mexico on 22 July 2021
Verified Purchase
Excelente
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Paulo
5.0 out of 5 stars Trop bien.
Reviewed in France on 9 April 2024
Verified Purchase
Je m'attendais pas à telle qualité ! Très bon multimetre.
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Giuseppe
5.0 out of 5 stars ottimo multimetro
Reviewed in Italy on 27 May 2021
Verified Purchase
Il multimetro è di ridotte dimensioni ma è grande nella completezza delle funzioni e nella qualità percepita, è robusto nei materiali, comodo, ha dei puntali con un cavo lunghissimo di sezione adeguata e molto morbidi , comodissimi. in definitiva è un super multimetro
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Giuseppe
5.0 out of 5 stars ottimo multimetro
Reviewed in Italy on 27 May 2021
Il multimetro è di ridotte dimensioni ma è grande nella completezza delle funzioni e nella qualità percepita, è robusto nei materiali, comodo, ha dei puntali con un cavo lunghissimo di sezione adeguata e molto morbidi , comodissimi. in definitiva è un super multimetro
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Jordine
5.0 out of 5 stars Great Meter
Reviewed in the United States on 12 November 2016
Verified Purchase
Very happy with this meter. OK: I am not a digital multimeter expert, (this is my first meter), but after much research, this seemed like the best value in this price range. Seems quite accurate to to me. Testing voltage, continuity, resistance, etc. The autoranging feature is nice - glad I opted for that. You can switch to manual ranging, although I found this a bit confusing. You'll see the goodness of autoranging once you use it. The temp probe was missing when received. However, a quick message to Extech solved that. They sent me one promptly. I have to say, FLIR/Extech customer service is excellent!
Also, I read a complaint somewhere about the stand being too flimsy - it's is built into the orange cover. But I think it's fine - it's a stand for the meter. It works. I mean if you were to pull on the leads while using, then yes, I suppose you could knock the meter over, but I have not had this problem. The leads seems good. I also read where getting replacement higher quality leads can be helpful. But the stock leads are great so far. Highly recommend!
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KC Kok
5.0 out of 5 stars Excellent EXTECH Multimeter
Reviewed in Singapore on 13 February 2023
Verified Purchase
Very reasonably priced quality product. One of the best Multimeter second to Fluke.
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