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the reading light can be human intelligent sensing
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fdm 02 digital noise meter 30 130 db a c weighted handheld decibel meter Colour:FDM-02 the reading light can beAccurate, professional measurements This hand held meter combines a capacitive microphone with a highprecision temperature and humidity sensor to give reliable readings. It offers A and C frequency weighting plus fast and slow time weighting (1. 25s fast), with an accuracy of 1. 5dB (94dB@1kHz) and a frequency response of 31. 5Hz8. 5kHz. Measurement range covers 30130dB, suitable for a variety of environments. Clear display and data logging The 2.
