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🎧 Measure the noise, master the moment.
The Extech 407730 Digital Sound Level Meter delivers professional-grade sound measurement with 2dB accuracy and 0.1dB resolution. Featuring a sensitive 0.5" electret condenser microphone and the ability to record max/min sound levels over time, it’s perfect for precise noise monitoring. Battery-powered and ready to use with included accessories, this compact, lightweight device is ideal for engineers, managers, and professionals demanding reliable acoustic data.
| Amperage | 300 Milliamps |
| Asin | B000EWY67W |
| Audio Output Effects | Multi-Effect |
| Best Sellers Rank | 24,291 in Business, Industry & Science (See Top 100 in Business, Industry & Science) 1,075 in Scanners & Testers 2,546 in Test & Measurement 11,073 in Electrical |
| Brand Name | Extech |
| Colour | White |
| Connector Type | 3.5mm Audio Jack |
| Controls Type | Knob |
| Country Of Origin | China |
| Customer Reviews | 4.5 4.5 out of 5 stars (253) 4.5 out of 5 stars |
| Global Trade Identification Number | 00793950407301 |
| Hardware Interface | 3.5mm Audio |
| Included Components | Microphone wind screen, four AAA batteries |
| Item Dimensions | 22.9 x 4.3 x 5.6 centimetres |
| Item Dimensions L X W X H | 22.9L x 4.3W x 5.6H centimetres |
| Manufacturer | Extech |
| Manufacturer Part Number | 407730 |
| Model Name | 407730 Digital Sound Level Meter |
| Model Number | 407730 |
| Power Source | Battery Powered |
| Signal Format | Analog |
| Style | Digital |
| Unit Count | 1 Count |
| Upc | 793950407301 |
| Voltage | 9 Volts |
User
Speakers sound better after using this
Has made my movie listening far better after using this to dial in my 5.1.4 Atmos setup
User
Bought to test audibility on Fire alarms and services plant.
OK its chinese, it will never be a Rhode and Schwarz but for a quick test to see that the dBa of the alarms is in the right ball park, it does it quite well. Nicely built. Could do with a protective case with it and for the money, even a slip cover would be good. Fortunately I had the box my previous meter came in that was replaced with this one after it died. Overall a reasonable tool
User
Failed badly on frequency response tests, insensitive
I tested this thoroughly in our microphone calibration room alongside our reference mic. Calibration at 1kHz 90dB SPL was spot on - it read 90.0! However, this is only part of the story. Tests at ten frequencies revealed that the A-weighting is nowhere near correct. Errors were: 50Hz +16dB, 100Hz +0.3dB, 200Hz +1.6, 2kHz +0.3 10kHz +13.5dB!! 12.5kHz +7.3dB.The gross errors at 50Hz and 10kHz are totally unacceptable and massively outside the standard specification. The peak at 10kHz will make it read very high on noise sources with high frequency content. Note also that the minimum reading is 40dBA which makes it useless for measuring noise on fridges, air conditioning etc which normally fall in the range 20 - 35dBA. A shame as the analog bar is a nice feature.
User
Bien pour utilisation à main levée. Sortie analogique inutilisable.
Grosse déception avec ce Sonomètre.Les fonctionnalités de base sont au rendez-vous. La précision est correcte. Et il y a même quelques bonnes surprises avec une vis de calibration, et une vis de fixation pour montage sur trépied. Si vous voulez utiliser ce sonomètre en utilisation de base "à main levée", très bien.Mais alors, pourquoi cette mauvaise note?Parce que j'avais acheté ce sonomètre spécialement pour relier la sortie analogique à un oscilloscope afin de pouvoir tracer les variations de niveau sonore. Hélas, à la sortie "AC", le sonomètre fournit un signal totalement inutilisable. À titre d'exemple, j'ai joint à ce commentaire un graphique montrant ce que je lis lorsque je balance un signal avec une amplitude de 100dB SPL. Si quelqu'un peut interpréter ça, merci de me le dire. À moins tout simplement que mon exemplaire ne soit défectueux? Bref, je renvoie le produit dés que possible...
User
Accurate, and a great value!
I have an older DB meter that does straight readings. I was looking for something that I could use for averaging and finding peak volumes so I gave this a try. It's not at all expensive, is easy to use, and seems to work correctly. I have a high end calibrated source for my older meter, and when I tried it on the Extech it read exactly the correct value. So in a static situation the meter is very accurate. While I don't have any way to test it for peak or average readings, I'm guessing that it's probably pretty darn close. I plan on using this for measuring shop machine noise levels, and also for monitoring sound levels for the PA for a jazz band I play in. If you need a DB meter, this one will do a good job at a great price.
User
Works great
Got this product for the restaurant i work at. We were having issues with noise complaints. This works perfectly!!!
User
EL MEJOR!!!
Es una gran herramienta de medición; exacto, versátil y robusto. No te quiebres la cabeza buscando cual es la mejor opción, ésta es tu mejor opción.
User
The best sound level meter ever!
As a life long audiophile who grew up with the popular Radio Shack sound level meter, I found the Extech 407732 to be a most impressive step up in both form and function. This well designed and user friendly device makes channel level balancing even more accurate and is most helpful when measuring surround speakers. Sound level measurements are displayed in digital form and the meter is easily managed with one hand making sound level adjustments that much easier. This is a great tool that I wish I had discovered years ago.
Trustpilot
3 weeks ago
2 days ago