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.
- 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