
Let me start by saying that I am a professional audio engineer and dB meters are essential. It has 2 things that make it different from everyone else. It accepts AAA batteries. 9V works for a lot of people, for me the only thing I had was my dB meter. Now that I have this, I can only narrow myself down to two types of batteries. It has a full measurement range of 30-130 dB. I don't have to limit myself to 20 dB steps like most others in this price range. I can see the entire range which is very useful for things like music as I can switch from quiet to loud very quickly and need to know how quiet and how loud I was working. /C, fast/slow,

π RISEPRO Decibel Meter, Digital Sound Level Meter 30 β 130 dB Audio Noise Measure Device with Backlight, MAX/MIN, Data Hold, Auto Power Off, and Dual Ranges - HT-80A
6 Review

π Professional Red/Black Digital Handheld Sound Level Meter - Automatically Metered with A and C Frequency Weighting for Musicians and Sound Audio Experts - Battery Operated (9V) - Pyle SPL25
5 Review

π Handheld Sound Level Meter with LCD Display - Mini Digital Decibel Tester and Alarm (30-130dBA)
4 Review