Product Features and advantages:
1. The product appearance is beautiful and exquisite, convenient to carry
2. Support Bluetooth communication
3. Sampling rate can be "fast/slow" free conversion
4. Maximum/minimum measurement mode
5. Data retention
6.LCD backlight
7. Automatic shutdown (can be cancelled)
8. The design of microcapacitive microphone sensing technology and band pass weight network
9. The Japanese TOREX LDO voltage stability control technology is adopted, and the product power consumption is lower
10. Using Taiwan special chip for data acquisition and processing and precision operational amplifier for signal processing
11. Instruments comply with the CE European Unio
n) Standard
| Function | The range of | Resolution | Accuracy |
| Noise measurement (A weighted) | 30～130dB | 0.1dB | ±1.5dB |
| Sampling rate | FASH |
|
125 milliseconds |
| SLOW |
|
1000 milliseconds | |
| Overload indication |
|
|
OL |
| Maximum measurement |
|
|
MAX/MIN |
| Data retention |
|
|
HOLD |
| Backlight |
|
|
There is |
| Automatic shutdown |
|
|
Five minutes |
| Low power warning |
|
|
3.0～3.5V |
| Battery |
|
|
4.5V |
| Consumption current | Work | mA | ≤40mA |
| Shut down | uA | ≤10uA | |
| Work环境 | Temperature |
|
0～40℃ |
| Humidity |
|
≤80%RH | |
| Storage environment | Temperature |
|
-20℃～60℃ |
| Humidity |
|
≤75%RH | |
| 按键Function | |||
| ON/OFF | 开Shut down键：短按一次开启或关闭产品电源;长按：切换到蓝牙（开机状态）. | ||
| MAX/MIN | Maximum and minimum value measurement key: short press the key: cyclic disy; MAX/MIN/ normal; Measuring state. | ||
| FAST/SLOW | Sampling rate选择键：短按该键：125 milliseconds快速采样与1秒慢速采样选择. | ||
| HOLD/BL | Data retention/Backlight键：短按：保持和释放数据;长安：Backlight开启或关闭
|
||
