CM130 Live Sound Monitor

works great...easy...and very accurate like it was advertised...i used it to calibrate my Klipsch speakers and found out my levels were so off using the the mic that came with the receiver..great product!

An indispensable tool, especially when you need to quantitatively defend your volume level to the critics in your church congregation. Good quality, easy to use.

Has been working well. Use as a mobile sound meter and also to calibrate our fixed position, PC based meter.

Exactly what I was looking for to configure the reference levels of my home theater. I calibrated my brother's setup as well. The important factors needed for home theater setup are all here - c weighted, slow setting, and various ranges. I like that it has a tripod mount as well (just remember to set it up so it's pointing straight up). It would be nice if a case was included, but it's not a big deal seeing how durable the plastic appears to be and having the foam windscreen to protect the mic. A suggestion for future versions would be to allow for a desired decibel rating to be entered in the unit and then having an audible alert, or light indicator, when reached. This would be very helpful when calibrating subwoofers, for example, which may require manually adjusting a volume knob on the sub while leaving the meter at the primary seating location. Next, I'll be having some fun with it to see how loud my atv exhaust is, how loud my drone is, and the difference the baffle makes on my motorcycle exhaust.

Overall, it does the job at a great price! It came pretty well calibrated, though I did adjust it slightly. The battery door does seem to bulge when the battery is in it. I'd say definitely go it if you're in the market for this price range.

Bought two. Delighted with the performance in measuring sound, EXCEPT one glaring issue that may not be a problem for every user. Battery life. Both units have a dramatic parasitic battery drain when in the off/stored condition. One hour usage across three weeks: 9v battery dead. Turns out the instruction manual warns users to REMOVE the BATTERY WHEN NOT IN USE. What??? That means the manufacturer knowns there is a parasitic drain and has not bothered to fix the bug in the system design. Who want that in an $80 tech meter in 2025? Too bad, because absent this deficiency, the meter would be 5-stars.

Very handy piece of kit. I used it to calibrate my home theater settings and discovered that my rear Atmos speakers were way too low. This pointed me towards boosting the external amp that drives them and once I did this, they were hitting reference levels like the other speakers which made the whole soundscape much better. The automatic calibration (YPAO for me) did not catch this and just made the best of what was available. I used this SPL meter to adjust all the YPAO set speakers (7.4.2 configuration) to reference level, after running the calibration and it made quite the difference. I would definitely recommend having one of these to hand for home theater calibration.

Bought this because my son practices his bass in the house. Works well. Nice digital display with large numbers. Battery life is very good. Been very pleased with it. If you have need for a simple, easy-to-read sound level meter, this one would be an excellent choice.

I use this for calibrating the sound in a home theatre. Works well for setting and confirming speaker levels. I also use it to set the general sound level when playing movies/shows. The only drawback is the display is not backlit. My theatre room is dark and this would be a great addition to the product.

Need calibration before use but it's OK for the price