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

A/C Weighting - HT622B features a polarized capacitance microphone and measures audio sound level in decibels, with choice of A or C frequency spectrum weighting. A-weighting rangs 30-130dB used for low-intensity noise as perceived by the human ear; while C-weighting ranging 35-130dB, is high-intensity noise, suitable for analyzing sound pressure levels from machinery engines, etc. A reading in the dB mode pretty much uniformly covers the entire audio spectrum from 30Hz to 8KHz.
F/S Time Weighting - The sound meter has fast/slow level capture capacity, a slow time weighting is a reading taken over a second; a fast time weighting takes the reading in 125 milliseconds, a good helper for home theater systems,an audio/rec studio, computer & N.F. monitor audio calibration.
Clear readings - The noise decibel meter has a high-definition full-view backlit display, and hold function can freeze the current reading based on the sound measurement according to individual needs so you can clearly see the readings even in low light environment.
Easy to Use & Portable - With non-slip structure and only 2.3 inches wide and 1.3 inches thick let the sound decibel meter easily to hold in hand. Powered by three durable AAA batteries auto power-off function to extend battery life.
Auto/Manual Range Choose - Made off nice and thick ABS platic and appear to be great injection-molded quality,the decibel meter with low/high frequency supports set up the range in 50dB dynamic range.

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