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Speksifikasi : Sound Level Meter CEM DT-855 Sound Level Meter DT-855/855S Sound Level Meters are designed for noise project, quality control, illness prevention & cure and all kinds of environmental sounds measurements. It is applied to the sounds measurement at factory, school, office, traffic access and household etc.
| Features | DT-855 | DT-855S |
| This unit confirms to the IEC61672-1 class 2 for Sound Level Meters | * | * |
| MAX & MIN measurements | * | * |
| Overrange & Underrange display | * | * |
| A & C Weighting | * | * |
| FAST & SLOW response | * | * |
| Analog AC/DC outputs for connection to frequency analyzer or X-Y shaft recorder | * | * |
| Datalogger function | * | * |
| Adjustable Alarm-Levels | * | * |
| Memory for 32700 readings | * | |
| 2GB Micro SD memory card | * | |
| Bluetooth interface to smartphone/PC |
Size (H x W x D): 248mm x 65mm x 45mm
Weight: 248g
| Specifications | |
| Standard | IEC61672-1 Type 2, ANSI S1.4 Type2 |
| Accuracy | ± 1.4dB |
| Frequency range | 31.5Hz ~ 8kHz |
| Dynamic range | 50dB |
| Level ranges | Lo:30dB~80dB Med:50dB~100dB Hi:80dB~130dB Auto:30dB~130dB |
| Time weighting | FAST ( 125mS ), SLOW ( 1s ) |
| Microphone | 1/2 inch electret condenser microphone |
| Resolution | 0.1dB |
| Display Update | 2 times/sec |
| Analog output | AC/DC outputs, AC=1Vrms, DC=10mV/dB |
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