Precision Sound Level Meter, BTMETER Digital Decibel Tester for 30~130 dB Noise Volume Measurement with A/C Fast/Slow Weighting, Large Backlight Display BT-882A Decibel Reader

This sound meter is perfect to have for many different scenarios - around the house, construction sites, on the job. Its an insightful tool that can help you understand the noise levels around you and the potential damage to your hearing. Based on the decibel reading you get can tell you if you're exposing your hearing to unsafe levels. Thus giving you an idea of where you should be wearing hearing protection. What you're getting is the sound meter itself, a 9volt battery, microphone cover, screwdriver (battery replacement), and a wire that plugs into the device for frequency analyzers. Be ware that this device will only cover a range up to a maximum of 130 decibels, assuming you were trying to get readings beyond that figure. Its very simple to use - turn it on and your up & running - getting instant readings on your surrounding environment. Handy features: The sound meter can report instant figures under the fast mode, and average numbers on slow. Its led screen is backlit and turns green for low visibility situations / darkness. You can also switch between modes for measuring mechanical noise and noise for the human ear. I also personally like the fact that you can set a threshold and if the noise exceeds that or is below the device tells you on the screen. Lastly it can save temporarily the max recorded figure and also shutoff on its own after a period of inactivity using the device.Overall for under $50 I think that you're getting a bargain and would recommend it!

This item isn’t work! Definitely not the item rhat i was looking for!

I used it to measure the noise from a noisy ceiling fan. I could certainly measure the drop in noise after cleaning the fan. But the noise levels jumped quickly (too quickly to read). Would be nice if it had a feature like one minute average, 3 minute average, etc.It comes with a screw on mic cover as well as a push on foam cover (prevents noise from wind or air). The foam cover dies not really fit in the case we'll do it arrived partially crushed and will stay that way unless you store it outside of the case. That's a long way of saying that it is a poorly designed case.

There are some particular tools that stand out as being essential in the audio world. Function/waveform generators, oscilloscopes, multimeters, and...decibel meters.In terms of cost vs performance, this should definitely be high on your list for consideration. The display may be a bit dated, and it still uses AA batteries (hello, we're in the age of lithium). But a dB meter that does A and C weighting for under $50, I guess I can tolerate having to remove a set of AA rechargeables periodically.I tested it in my car, which pushes close to 114 dB A weighted (and over 130 C weighted) so I'd say that's pretty accurate. I may do further tests with some test tracks to see if I can get higher numbers from a more controlled source than just Sirius radio. I didn't test the limits of the battery life because, well, I can't imagine ever exhausting a set of batteries during a test session. My recommendation is put rechargeables in it and charge em before each use. I do that with everything.This is a fine (if a bit dated in features) meter that does what it's supposed to do. You can't beat having a dB meter capable of A and C weighting for less than $50, and whether you're building an audio test kit for the professional world or just a "sound nut", this is a great tool for the cost.

This meter comes with all you need to start measuring sound. It also includes a single sheet that explains the various settings and what they mean such as the different sound reporting – averaging or maximum called A or C. I found it works as the instructions indicate it will.The BTMeter is claimed to come calibrated which’s good for a year. I have no way to generate calibrated sound so took the company’s word for it. I did do what I call sanity or sniff checks by using it to measure sounds where I have a reasonable idea of their level. For example, my 22-year-old truck wearing mud and snow tires should read in the high 70s or low 80s averaging (slow) at a 65 mph cruise. It did. If it measured a Lexus-like 68 dB or a Who concert-like 110 dB, it’d fail my sanity or sniff test.While this meter has a good range for almost all uses, it did fall down on one. My sister wanted to measure a few of her firearms’ noise levels with and without a suppressor (silencer) she just got after months of waiting for BATF approval. It turned out that even with the supposed ‘silencer’ the firearms she has exceeded the 130 dB maximum capacity of this unit. While the meter wasn’t able to measure it, others at the range said the sound level unrestricted could easily be over 170 dB (!) and with the suppressor, maybe 135 dB.It seems to me that measuring sounds, not just firearms, loud enough to damage hearing would be a good use for a sound measuring meter so I’m a bit let down that this unit cannot be used for that purpose.Hint: when you get yours, for a surprise, measure the sound level of kitchen appliances especially blenders.