| Specification | |||
| GT1355 GT1355A GT1355B | |||
| Calibration sound source | 94dB@1KHz | ||
| Measurement range | 30~130 dB(A),35-130dB(C) | ||
| Accuracy | ±1.5dB(Reference sound pressure standard,94dB@1KHz) | ||
| Resolution | 0.1dB | ||
| Frequency weighting | Aand C | ||
| Frequency response | 31.5Hz-8500Hz | ||
| Time weighting | FAST/SLOW | ||
| Sampling rate | FAST.8 times/second SLOW:1 times/second | ||
| Rated current | 70mA | ||
| Standby current | 5uA | ||
| Charging time | 1.5h | ||
| Duration of service | 8h | ||
| Microphone | 1/2-inch polarization capacitance microphone | ||
| Operating temperature | 0~50℃ | ||
| Operating humidity | 10-80%RH | ||
| Power supply | 3.7V lithium battery /1000mAh | ||
| Dimension | 160*58*31mm(Excluding sponge bal) | ||
| Weight | Approx 126g(Excluding sponge ball) | Approx 120g(Excluding sponge ball) | Approx 114g(Excluding sponge ball |
| Data storag | 31000 | 43000 | 43000 |
| LCD | VA color screen | IPS color screen | IPS color screen |
| DC output | × | x | √ |
| Max/Min/Current value | Maximum/current value | Max/Min/Current value | Max/Min/Current value |
| Data retenion | √ | √ | √ |
| Data read | View only on a PC | Product and PC end | Product and PC end |
| Three-cdlor light alarm | √ | √ | √ |
| Automatic shutdown | None About 10 minutes | Automatic shutdown duration can be set | Automatic shutdown duration can be set |
| Time date display | Time and date switch display | The time and date are displayed simultaneously | The time and dale are displayed simultaneously |
