|
Specifications |
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 |
30—130dBA、35—130dBC |
|
Weighting Properties |
A |
A /C |
|
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—80dB、40—90dB、50—100dB、60—110dB、70—120dB、80—130dB |
|
Bargraph |
√ |
√ |
|
Auto/Manual Range |
√ |
√ |
|
Under/Over Range |
UNDER/OVER |
UNDER/OVER |
|
Backlight |
√ |
√ |
|
Data Hold |
√ |
√ |
|
Max/Min Hold |
√ |
√ |
|
Auto Power Off |
√ |
√ |
|
Low Battery Indication |
√ |
√ |
|
USB |
|
√ |
|
Power |
3x1.5V AAA batteries |
|
|
Weight |
Approx.176g |
|
|
Size |
189X60X33mm |
|
|
QTY |
40pcs |
|
|
Safety Rating |
EN61326-1 |
|
| Specifications | HT622A |
| Sound pressure accuracy | ±1.5dB (94dB＠1KHz)、±5dB (94dB＠8KHz) |
| frequency response | 30Hz — 8KHz |
| Dynamic range | 50 dB |
| Measuring range | Measuring Range |
| Weighting properties | A |
| Dynamic characteristics | FAST 125ms, SLOW 1sec |
| Microphone | Polarized capacitance microphone |
| Range | 30—80dB、40—90dB、50—100dB、60—110dB、70—120dB、80—130dB |
| Bargraph | √ |
| Auto/manual range | √ |
| Under/over range | UNDER/OVER |
| Backlight | √ |
| Data hold | √ |
| Max/min hold | √ |
| Auto power off | √ |
| Low battery indication | √ |
| Power | 3x1.5V AAA batteries |
| Weight | Approx.176g |
| Size | 189X60X33mm |
| Qty | 40pcs |
| Safety rating | EN61326-1 |
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