|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)|
|Item Package Quantity||1|
|Number Of Pieces||1|
|Warranty Description||1 year|
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Extech 380942 30 Ampere True RMS AC/DC Mini Clamp on Meter
|Price:||$350.99 & FREE Shipping. Details|
|You Save:||$39.00 (10%)|
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Top Customer Reviews
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 ›
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.
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.
... 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.
Most Recent Customer Reviews
shipped immediately. best price. great features. input jacks are outputs for use with a scope. solar panel analysis without disconnecting.Published 1 month ago by WalmartGreeter
Best thing going for measuring low current like I have to do all the time...I wish it was yellow, I have lost three already in the last few years. On my fourth one.Published 8 months ago by NEIL W. RUSS
Works Great! Measures my DC Low amp readings where no other meter will! Pretty Accurate compared to a few other meters I have.Published 10 months ago by R. Crisler
Works very well. However when the batteries are low, it gives strange indications even though there was no low battery indications. It's well worth the money.Published 18 months ago by James B Freal
Item arrived quickly and works well. Description was accurate.Published 19 months ago by NYSDOT R1 Traffic