DIGITAL SOUND LEVEL METER

Product Description

SL-4022 CLASS 'A' SOUND LEVEL METER:

Measurement Ranges : 3 Ranges (30~70dB, 60~100dB, 90~130dB).

Resolution : 0.1dB. Accuracy (23 +5oC) :Time weighting and frequency weighting meet IEC 651 type 1, calibrating input signal on 94dB (31.5Hz ~ 8kHz), the accuracy of A weighting is specified as follows : (1) 31.5Hz ~ +1.5dB, 63Hz ~ +1.5dB, 125Hz ~ +1dB. (2) 250Hz ~ +1dB, 500Hz ~ +1dB, 1kHz ~ +1dB. (3) 2kHz ~ +1dB, 4kHz ~ +1dB, 8kHz ~ +1.5dB to -3dB). Size of Microphone : 1/2 inch standard size.

Features:

• Frequency weighting and time weighting are meet IEC 61672 Class 1.
• Large LCD display, easy to read.
• A & C weighting networks are conformity to standards
• FAST & SLOW dynamic characteristic modes
• AC output for system expansion.
• Build in adj. VR, available for easy calibration
• Condenser microphone for high accuracy & long-term stability.
• Build max. hold reset switch
• Max. Hold function for stored the maximum value on display.
• Warning indicator for over and under load.
• LCD display for low power consumption & clear read-out even in bright ambient light condition.
• Used the durable, long-lasting components, including a strong,light weight ABS-plastic housing case.
• Compact and heavy duty housing case.
• Low battery indicator.