KethvozDecibel Meter Digital Sound Level Tester, Wall Mount Clock Monitor Noise dB Display Humidity Temperature with 11inch LED Screen, Decibel Reader for Classroom Studio Hospital

So got this to try and get my kids to be more mindful of the noise they make and so far it seems to be working although at first they where more interesting in getting it to the red

It advertises a range of 30-130 but it's no true. It never goes below 48db. And it's inaccurate when measuring as compared to real decibel meters

Poor instructionsHave to try to work set up yourself2 because instructions poor

My daughter is going to take this into school so the children can see how much noise they make, it’s then going up in our conservatory.It’s a great clock, temperature and humidity sensor without the added fun of a decibel meter.The instructions were very good for setting it up although it was really only the time we had to set.The digital display is extremely easy to read, without the need for our glasses and can be seen from quite a distance away.I’ve no way of knowing how accurate the decibel meter is but for me it’s just a bit of fun with the grandchildren.

I really like the fact that this has multiple displays - clock, humidity, temperature and noise levels. It’s quite a fun digital interface - colourful display to indicate the readings. It can be wall mounted with a pair of screws and plugs. The only thing with wall mounting it is you do need to charge it although the charging cable is reasonably long. You can also control the brightness if you want to prolong battery life. Even with the voucher you’re still paying over £50 but I’ve been happy with this so far. I appreciate the fact that it’s displaying the different readings - a nice edit of fun. Although I suspect if you want it to solely measure noise levels you might want to invest in something a bit more specialised.

On first turn on, the device lasted over 8 hours on battery. Second and third charge it was lucky to last 4 hours. Temperature rating is fairly accurate and so is humidity, but the buttons on top don't really do anything. Pressing mute does not mute the loud beep it makes. It's really light and the screen is well lit but that's about it

This unit has a big, bright display and the temperature, humidity and decibel meters all seem to be working as expected when compared with other sensors. There are no instructions for how to set the time, which is strange. The product description DOES have instructions to hold the "M" button down, which works, but these are basic instructions that should be included with the product. In addition, the time displays in 24hr military time with no apparent way to switch to 12hr (again, no instructions for the clock). Overall this does what it says, but the product could use more polish.

Mine shows an orange face regardless of how loud it is. The face isn’t changing at all. I’m guessing that most units work fine, and I probably just got the rare defective one. I was also a bit concerned when I looked at the manual and saw that the sad orange face will appear when it is quiet and comfortable, and a happy green face when it is loud. Probably a misprint, but enough to stop me from ordering another one after I send this defective unit back.

The clock part of this (the most important?) is kind of half baked. First there are no instructions for setting the time which is really weird, but I figured out that holding down the "M" button long enough put it into time setting mode. That's when I discovered that it is stuck on military time which is annoying, I imagine most people wouldn't want that in North America at least. I have no idea how accurate the sound meter is but it does react what seems to be appropriately to noise around it. The temperature and humidity readings seem to be close enough on the clock I received to what I expect (temperature only in celcius). The screen is very nice, it's huge and easy to read from a distance and very bright and sharp. The battery doesn't last nearly long enough to make mounting it on the wall unplugged a practical thing to do. I don't like that it charges with a USB cable but the actual plug on the unit is just a DC barrel plug instead of a standard USB port.