Ψηφιακός μετρητής στάθμης ήχου
Εύρος μέτρησης 30-130dB
Ακρίβεια 1,5dB
Δυνατότητα συγκράτησης μέτρησης και ένδειξη ελάχιστης και μέγιστης στάθμης
Functions | Range | Resolution | Accuracy |
Noise（A Weighting） | 30～130dB | 0.1dB | ±1.5dB |
Sampling Rate | FASH |
| 125ms |
SLOW |
| 1000ms | |
Overload Indication |
|
| OL |
MAX/MIN |
|
| MAX/MIN |
Data Hold |
|
| HOLD |
LCD Backlight |
|
| Yes |
Auto Power Off |
|
| 5min |
Low Battery Indication |
|
| 3.0～3.5V |
Battery |
|
| 4.5V |
Current Consumption | Working | mA | ≤40mA |
Power off | uA | ≤10uA | |
Working Environment | Temperature |
| 0～40℃ |
Humidity |
| ≤80%RH | |
Storage Environment | Temperature |
| -20～60℃ |
Humidity |
| ≤75%RH | |
Key Functions | |||
ON/OFF | Short press to turn on/off the meter | ||
MAX/MIN | Short press to switch between MAX/MIN/normal measurement state | ||
FAST/SLOW | Short press to select fast sampling (125ms) or slow sampling (1s) | ||
HOLD/BL | Short press to enter data hold mode, long press to turn on/off backlight | ||
