1. The measurement frequency range: 10Hz-199.9Hz (only measure the frequency voltage)
<br />2. The voltage range points: AC80-300V (AC150V-500V: this time not through the instantaneous voltage of 500V 10 seconds, less than 450V safer)
<br />3. Accuracy: 0.5%   2 words
<br />4.LCD LCD display: character height 20mm
<br />5. Install hole size LED 5135 with the same type of header
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<br />New Blue LCD Digital  Frequency Panel Meter 10-199.9 Hz
<br />Brand new, good quality & high performance
<br />Type: LCD
<br />Power: Doesn't Require a Power Supply
<br />Measurement Accuracy:0.5%   2 words
<br />Accuracy: 0.1Hz
<br />Meterage: 80V - 300V AC
<br />Size:79(length)*43(width)
<br />The max measure  voltage is AC 300V, please do not exceed AC300V, otherwise, the meter would  be damaged.
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<br />Package Includes:
<br />1x Digital Frequency Meter