Qty:1
Extech 380942 30 Ampere T... has been added to your Cart

Other Sellers on Amazon
Add to Cart
$389.99
+ Free Shipping
Sold by: Acme Tools
Add to Cart
$389.99
+ Free Shipping
Sold by: Test Equipment Depot
Add to Cart
$389.99
+ Free Shipping
Sold by: Sale Stores
Have one to sell? Sell on Amazon

Extech 380942 30 Ampere True RMS AC/DC Mini Clamp on Meter

4.3 out of 5 stars 24 customer reviews

List Price: $389.99
Price: $350.99 & FREE Shipping. Details
You Save: $39.00 (10%)
Only 13 left in stock (more on the way).
Ships from and sold by Amazon.com. Gift-wrap available.
30A
    This fits your .
  • Enter your model number to make sure this fits.
  • High resolution down to 0.1mA AC and 1mA DC
  • One touch Auto Zero for DC current measurements
  • Min/Max function
  • AC and DC voltage measurements to 400V using test leads
  • 0.9 inch (23mm) jaw opening
12 new from $350.99
$350.99 & FREE Shipping. Details Only 13 left in stock (more on the way). Ships from and sold by Amazon.com. Gift-wrap available.

Frequently Bought Together

  • Extech 380942 30 Ampere True RMS AC/DC Mini Clamp on Meter
  • +
  • Extech 480172 AC Line Splitter
Total price: $372.22
Buy the selected items together

Special Offers and Product Promotions

Style: 30A

Technical Details

Style: 30A
  • Portable

Product Description

Style: 30A

Two models provide high accuracy and resolution Large 4000 count LCD display with full function indication Fast 40 segment analog bargraph One touch "Auto Zero" for DCA measurements eliminates the need to turn a knob to zero adjust Data hold, Max/Min recall display 0.9" (23mm) clamp jaw opening Overload protection to 400A DC Dimensions / Wt: 7 x 1.8 x 1.3" (178 x 45 x 32mm) / 8 oz. True RMS models recommended for measurements where distortion may otherwise cause inaccuracies Option 3-prong AC Line Separator enables safe and easy measurements on power cables with molded plubs (splits hot conductor from neutral and ground) True RMS AC current and voltage Measure low current with high resolution to 0.1 mA AC or 1 mA DC Auto power-off Complete with case, test leads, wrist strap, and two AA batteries

Product Information

Style:30A

Technical Details

Part Number 380942
Item Weight 1.1 pounds
Product Dimensions 7 x 1.8 x 1.3 inches
Item model number 380942
Batteries 2 AA batteries required. (included)
Size 1
Style 30A
Item Package Quantity 1
Number Of Pieces 1
Display Style LCD
Special Features Portable
Batteries Included? Yes
Batteries Required? Yes
Warranty Description 1 year

Additional Information

ASIN B00023RU0S
Customer Reviews
4.3 out of 5 stars 24 customer reviews

4.3 out of 5 stars
Best Sellers Rank #382,936 in Home Improvements (See top 100)
#274 in Industrial & Scientific > Test, Measure & Inspect > Electrical Testing > Current Testers > Clamp Meters
Shipping Weight 1.1 pounds (View shipping rates and policies)
Date First Available April 20, 2004

Warranty & Support

Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.

Feedback

Would you like to give feedback on images?
Would you like to tell us about a lower price?

From the Manufacturer


Customer Questions & Answers

Customer Reviews

Top Customer Reviews

Style Name: 80A Verified Purchase
Clamp meters are very handy devices and I thought to give this low current meter a try. I restore antique cars and motorcycles for a hobby. Having a meter capable of measuring low current DC is very desirable. The specifications for this item say it will measure 1mA... IMPOSSIBLE!

The first unit I purchased would not zero. These are Hall Effect devices and it's very important to zero the meter in proximity to where you're taking a measurement to get an accurate reading. Good luck trying to do this. I took the meter out to test it. I used my Sorensen DC power supply (an extremely stable device) and hooked up to a calibrated load - that means I should have been able to read current levels precisely and accurately. When I hit the zero button on the meter it would set to zero and immediately start drifting... all over the place. There is no way to achieve an accurate measurement if the zero is drifting - the drift was large: 20-30mA. You can't measure 1mA accuracy if the unit is drifting 20 times that much.

I called Extech to confirm I wasn't using the meter incorrectly - they confirmed it shouldn't be behaving this way. So back it went. Amazon was terrific and sent a replacement immediately. The second meter behaved similarly, but it drifted even more wildly.

To claim 1mA you have to have a very stable meter. You should be able to measure the correct current (accuracy) and get the same number (or close to it) every time (precision). Each of the two meters I received could not deliver either an accurate or a precise measurement. Admittedly I didn't have time to conduct a very scientific test, but I don't believe this meter is accurate to anything better than 50mA.

It's possible Extech had a bad run on these meters and I received two lemons.
Read more ›
5 Comments 11 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
Thank you for your feedback.
Sorry, we failed to record your vote. Please try again
Report abuse
Style Name: 80A Verified Purchase
Only 4 out of 5 stars because the readout is mediocre. The currently active measuring function, such as AC, DC, Ohms, V, mV, etc. is displayed in such tiny letters that it cannot be read reliably without a magnifier. Also, the decimal point is so small that it is hard to locate between the very large digits.

By the way, this Extech 380950 is nearly identical to the ESI 687. There are just minor differences in labeling style and the shape of the selector knob.
Comment 3 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
Thank you for your feedback.
Sorry, we failed to record your vote. Please try again
Report abuse
Style Name: 200A Verified Purchase
Quickly this is an easy to use and I believe accurate tong meter. It's small size allow it to fit easily in a tool pouch. It does everything I want. I have cracked the display in my pouch. I'm now a little more careful how I put it in my pouch. I wish it came with a hard case. I'd probably still keep it in my pouch. My only issue is that it doesn't have an auto off and I'm forever putting it away with the power on, wearing out the battery. I also bought the 110 volt plug adapter that allows me to read one leg of the power cord of an appliance without spearating conductors. That's been real handy.
Comment 7 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
Thank you for your feedback.
Sorry, we failed to record your vote. Please try again
Report abuse
Style Name: 80A
Extech 380950 Clamp Meter Does not zero or read low currents accurately. The meter would set to zero and starts drifting 20-50mA.
Comment 7 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
Thank you for your feedback.
Sorry, we failed to record your vote. Please try again
Report abuse
Style Name: 400A Verified Purchase
I made a very big mistake choosing to buy this EXTECH mini clamp meter Model: 380947. If I had known I would have stick to FLUKE products.
I have fluke 287 - a very good multimeter; I have no issue with it. FLUKE is a reputable company well known for measuring instruments.

From the attached image, at 40A and 400A dc range, the meter (EXTECH mini clamp meter Model:380947) will not zero; it reads -00.19A and -002.1A at no current!!!!!!!!!!!
The accuracy is very very poor!!!!!!! in fact this is not a meter, it's just a junk. You can imagine taking dc current measurement at both 40A and 400A and getting two different readings.

For instance, at 40A range the reading was 01.34A and at 400A range, it read - 000.3A!!!!!!!!!!!!!! While the true reading suppose to be 1.560A when measured with other meters. I just wasted my hard-earned money of $299.99 plus shipping. Please I want a refund.

I am greatly disappointed. I will not recommend this product to anybody. If you need a good meter, buy FLUKE product.
My rating for this product was actually 0 star.
Comment 3 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
Thank you for your feedback.
Sorry, we failed to record your vote. Please try again
Report abuse
Style Name: 200A
Low DC current range makes this meter ideal for trouble-shooting auto electrical problems. I used it to pinpoint a relay problem on my air-conditioning circuit without disconnecting the wires or connectors.
Comment 5 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
Thank you for your feedback.
Sorry, we failed to record your vote. Please try again
Report abuse
Style Name: 30A Verified Purchase
Just great for measuring low current, especially DC. Hard to find a low current DC clamp-on. If you zero it just before you use it and right next to the wire, you can even check 4-20ma sources. Uses 2 AA batteries. Also checks voltages and includes banana plug test probes. Comes in a black canvas type case with Velcro closure and carry strap. 3 guys that I work with borrowed it and then bought one.
Comment One person found this helpful. Was this review helpful to you? Yes No Sending feedback...
Thank you for your feedback.
Sorry, we failed to record your vote. Please try again
Report abuse
Style Name: 200A
This is a superb multimeter. Mine has worked well for more than 10 years!
... Update: My Extech 380941 stopped working just after I submitted the above review. I should have added "knock on wood". When I asked Extech Service to quote a repair, I received a reply from FLIR, which appears to be the parent company of Extech. FLIR quoted $150 for repair plus $100 for calibration plus $75 for shipping, which does exceed the cost of a brand new meter by $55! (Amazon lists the Extech 380941 for $269.99.) In other words, this meter is not repairable.
BR
Comment 2 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
Thank you for your feedback.
Sorry, we failed to record your vote. Please try again
Report abuse

Most Recent Customer Reviews

Set up an Amazon Giveaway

Extech 380942 30 Ampere True RMS AC/DC Mini Clamp on Meter
Amazon Giveaway allows you to run promotional giveaways in order to create buzz, reward your audience, and attract new followers and customers. Learn more about Amazon Giveaway
This item: Extech 380942 30 Ampere True RMS AC/DC Mini Clamp on Meter