Decibel Meter, HABOTEST HT622B Digital Sound Level Meter Range 30-130dB,dB Meter with A/C Weighting,Handheld SPL Meter Used for Home, Office,Factory

The HABOTEST HT622B digital sound level meter surprised me quality wise. The package is even of box-store quality. The meter is well built with good quality plastic, good quality rubber trim, the display is bright and vibrant (I don't use it outdoors under direct sunlight), it comes with a decent tool pouch, the windscreen is a little on the loose side, and it comes with an easy to understand manual. It is within the mentioned tolerances meter wise, I checked it against 4 other sources. I don't believe it would be considered legally binding in regards to noise ordinance enforcement, but plenty accurate for my use. Overall I'm impressed with this robust, budget minded meter and would recommend it to anyone that doesn't require lab quality nor legally binding readings. Two thumbs up here!

The HABOTEST HT622B Digital Sound Level Meter is a handy tool to have around for both industrial applications and where I use it, in determining the ambient noise floor of recording and performance spaces. I work in audio editing and recording, and in our current space, designed over 45 years ago, little thought was given to ambient noise in the recording spaces. We have to correct it in the editing process now, but we are moving to a new space soon, so I wanted to check the ambient noise here to compare it to the new space once it is under construction. Using the HABOTEST HT622B set to C measurement scale and slow updating, I sat in each room and measured the ambient noise ,with the average of the 4 spaces being about 45-48dB. This is much higher than is optimal, so I have made a note of this and will be talking to the designers to ensure we come in much lower in the future. We also have a theatre space, and they asked me to check the ambient noise level there, and it was around 55dB in most of the space. The HABOTEST HT622B can also be used to gauge the sound levels of a PA system to ensure you are not providing too much sound for a space, or to check the noise levels of running machinery to ensure that hearing protection is adequate to prevent hearing loss. Great tool, easy to use, and convenient. Measures from 30-130dB and is very responsive and sensitive, picking up very faint sounds that even I missed.

This meter seems typical but isn't certified, or at least doesn't come with any proof of such. It will allow you to compare levels of before and after repairs or even a SPL comparison between 2 devices. I don't know that you can consider the levels accurate without certification.It does work and is comparable to another meter that I got from Amazon. I am hoping it holds up and stays accurate, time will tell. Not thrilled that it isn't certified.

This looks to be a pretty typical SPL meter. Body seems nice and rugged, though care does need to be taken for the more sensitive microphone tip which is the metal cylinder about the size of a sharpie which stick out. Other than a quality control card, there was no evidence of this being calibrated against a class-1 or 3 sound pressure source. Typically meters like these need a reference loudness to adjust their scale against, and then are graded (class1 -3) based on how well they hold that tolerance over time and temperature/environments. This meter has no grade so I don't expect or plan to use it for any legal or scientific purposes. It does however measure very closely to my iPhone with an SPL app which is also not calibrated (within 1-2dB). In my home with A-wt turned on I can get the below-scale reading (<30dB) but with C weighting it opens up to a flatter filter and then can get background readings. A-wt is typically used for quieter environments and C for louder in order to match more similarly to the way humans hear soft and loud sounds. So for soft sounds I can hear more things than this meter can with A-weighting. I have to cheat and use C weighting to get readings for quiet things.

I order this decibel meter to measure how loud was a pair of mini fridges I ordered. One said it was ultra quite so I put it in my bedroom but had to eventually move it out because it would wake me up at night when the compressor would run. The other mini fridge is quitter but doesn’t cool as well. In conclusion this decibel meter allowed me to evaluate to sound level of 2 different products for my personal use.

This is for "Decibel Meter, HABOTEST HT622B Digital Sound Level Meter Range 30-130dB,dB Meter with A/C Weighting,Handheld SPL Meter Used for Home, Office,Factory"Display is fine indoors, but almost invisible in bright sunlight, not much better with overcast sky. A better display for outdoor use would be the gray background, black characters lcd with backlight toggle for indoors.