HT622A Digital Sound level Noise Meter Decibel Sound 30 dB to 130 dB AudioTester
Features:
HT622A Digital Sound level Noise Meter
HT622A | HT622B | |
Sound pressure accuracy | ±1.5dB (94dB@1KHz),±5dB (94dB@8KHz) | ±1.5dB (94dB@1KHz),±5dB (94dB@8KHz) |
frequency response | 30Hz — 8KHz | 30Hz — 8KHz |
dynamic range | 50 dB | 50 dB |
measuring range | 30—130dBA,35—130dBC | 30—130dBA |
Weighting properties | A /C | A |
Dynamic characteristics | FAST 125ms, SLOW 1sec | FAST 125ms, SLOW 1sec |
Microphone | Polarized capacitance microphone | Polarized capacitance microphone |
Range | 30—80dB,40—90dB,50—100dB,60—110dB,70—120dB,80—130dB | 30—130dB |
Bargraph | √ | √ |
Auto/manual range | √ | |
Under/Over range | UNDER/OVER | UNDER/OVER |
Backlight | √ | √ |
Data hold | √ | √ |
MAX/MIN hold | √ | √ |
Auto Power Off | √ | √ |
Low battery indication | √ | √ |
Power | 3x1.5V AAA batteries | |
Weight | ||
Size |