The HT622B volume level meter has high sensitivity. The color LCD display provides the most important information, and the additional windshield provides accurate measurements regardless of the conditions. The device offers multiple modes of operation and convenient access to data thanks to its USB connection to a computer. You will need 3 AAA batteries (not included) to power the meter.

- Sound pressure accuracy: ±1.5dB (94dB＠1KHz), ±5dB (94dB＠8KHz)
- Frequency response: 30Hz-8kHz
- Dynamic range: 50dB
- Measuring range: 30-130dBA, 30-130dBC
- Weighting properties: A/C
- Dynamic characteristics: FAST: 125ms, SLOW: 1s
- Microphone: Polarized, capacitance
- Range: 30-80dB, 40-90dB, 50-100dB, 60-110dB, 60-110dB, 70-120dB, 80-130dB
- Bar chart: Yes
- Auto/manual range: Yes
- Range below/above: Below/above
- Data retention: Yes
- MAX/MIN: Yes
- Automatic shutdown: Yes
- Low battery indicator: Yes
- Power supply: 3x AAA 1.5V batteries
- Size: 189x60x33mm
- Weight: 180g