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Extech 407730 40-to-130-Decibel Digital Sound Level Meter |  | Brand: Extech Instruments
Category: Home Improvement
Buy New: $89.99
as of 11/25/2009 12:24 CST details
New (6) from $89.99
Seller: Amazon.com
Rating:  9 reviews
Color: White
Media: Tools & Hardware
Autographed: No
Memorabilia: No
Number Of Items: 1
Batteries: 4
Batteries Included: Yes
Shipping Weight (lbs): 2
Dimensions (in): 9 x 1.7 x 2.2
MPN: 407730
Model: 407730
UPC: 793950407301
EAN: 0793950407301
Shipping: Eligible for FREE Super Saver Shipping
Availability: Usually ships in 24 hours
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| Features:
| • | Measures 40 to 130dB on digital display | | • | 2dB accuracy with 0.1dB resolution | | • | Fast responding analog bar graph | | • | Records Max/Min values over time | | • | Auto power off and Max Hold function |
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| Accessories:
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| Editorial Reviews:
Product Description
Digital Sound Level Meter --- Analog bargraph with 50dB range updates every 40ms
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| Customer Reviews:
Showing reviews 1-5 of 9
 Excellent Value January 19, 2009
BlackCoffee (Saint Mary's City, MD USA)
2 out of 2 found this review helpful
This is a nice little dB meter that was used in my daughter's science project. She did well. The ranges are broad enough to cover most applications. The meter reproduced the levels accurately. Good for the price.
Easy to Use Decibel Sound Meter August 29, 2008
Zig28 (Maryland, United States)
28 out of 28 found this review helpful
This Extech 407730 decibel sound meter is easy to use right out of the box and it works very well. The instructions are simple and easy to understand and everything worked as expected. I had never owned or used a sound meter before, so I wasn't sure what to expect, and someone told me it can be complicated, but it's "So simple a child could do it", to quote Dr. Leonard "Bones" McCoy from the original Star Trek (Spock's Brain episode)!
Having both the "A" and "C" ratings available to use is a good thing -- make sure you know which one you should use for your particular application (I did some basic web research to learn more). It measures 40 dB to 130 dB, and I was surprised to find that 43 dB is about my basic background noise in my yard, no wind but birds chirping.
Also, the "Max Hold" function is great; it keeps the highest rating on the display so if you mount the meter remotely, you can still see what it recorded.
I mounted it on a basic camera tripod and it worked fine. It actually has a metal tripod mounting thread, unlike some (expensive) digital cameras that use plastic.
The only nits I can pick are: 1) The little foam wind sock that sticks over the end is pretty flimsy and it comes off too easily, but not a biggie; and 2) The battery cover is attached with a tiny Phillips head screw, rather than having a cover that simply snaps on. So you'll need to find a very small #3 Phillips head screwdriver just to remove the batteries, and let's hope you don't have to do this at night or in the bush.
It seems well made for what it is -- basic plastic case and slightly mushy rubberized push buttons. The display is easy to read (not sure if it has a light, I only used it during the day).
Once you familiarize yourself with the instructions, you pretty much don't have to bother with them again, it's that easy to use. The batteries are the el cheapo type that probably have about 25% of the lifespan of a good pair, but otherwise, this is a very nice unit that's probably way overkill for just recording the neighbor's late night parties. I used it for a basic scientific research project and published the results and it worked fine for that.
Worth the money August 22, 2008
W. S. Bush
2 out of 2 found this review helpful
Took just a few minutes to figure out the tool . You'll find that reading the manual first helps a lot since there are several mode. Something that is not mentioned in the sales literature or website is the accuracy. If you are looking for super accurate, then you will need to buy other equipment to calibrate this each time you use it. However, it seems to be very consistent during a session of use. Worth the money.
 nice unit, good value August 17, 2008
Tom K.
2 out of 2 found this review helpful
I use this db meter in a professional recording studio for spot-checking SPL around the control room throughout the day and work week. It's tremendously easy to use and anyone can quickly find their way around it's buttons.
Good little unit March 20, 2008
N. Francis (Mims, Fl USA)
7 out of 9 found this review helpful
Overall not a bad unit. I used it to set my guitar effects pedal output volume level, so that the volume level would be the same for each selection. The only slight downside is the unit automatically shuts itself off to conserve the batteries, which got irritating while I was working. If I want it off, I'll turn it off and if I forget, shame on me!
Showing reviews 1-5 of 9
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