The Hz meters use a frequency-to-DC current transducer which drives a high sensitivity moving coil type indicator. It features accurate frequency measurements without noticeable influence of line voltage fluctuation (50 to 300V) or waveform distortion.

Principle: Frequency sensing transducer.
Scale Length: Approx. 135mm (5-3/8”).
Case Material: Bakelite with glass window.
Accuracy:
- ±0.5% of full scale value on 45 to 65 Hz range.
- ±0.5% of full scale value on 0 to 100Hz range.
- ±0.5% of full scale value on 0 to 500Hz range.