The Nor137 Vehicle Noise Meter is specially designed for in-the-field stationary vehicle noise test measurements in accordance with ISO 5130 or similar national standards. For use in connection with an external rpm detector unit.
Features
• Detachable preamplifier/microphone
• Direct rpm-pulse input from external rpm-detector
• Internal memory
• USB interface
• Battery operated
• Clear back-lighted display
• Type approved by PTB
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