Key Features- Class 1 accuracy: The HT155 meets the requirements for a Class 1 device, the highest level of accuracy for sound level meters.
- Broad measurement range: It has a wide measurement range of 25 to 140 dB.
- Multiple frequency weighting: The meter can perform measurements with A, C, and Z (linear) frequency weighting.
- Time weighting: The HT155 features several time weighting options, including Fast, Slow, Impulse, Peak C+, and Peak C- integrations.
- Comprehensive analysis: The instrument can perform multiple functions simultaneously, including statistical noise analysis, 24-hour analysis, and equivalent noise level analysis.
- Class 1 calibrator: For pre-measurement checks, the device is supplied with its own portable Class 1 calibrator.
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