new and high quality Small, exquisite workmanship, long service life. Clear display, easy to use. High accuracy, and stable working performance LED Display meter has wide measurement range of 60-500V, and 0-100A This product cannot be used in non sinusoidal AC circuits such as silicon controlled voltage regulators, inverters, and frequency conversion equipment, which may cause damage. Product Name: Digital Display AC Voltmeter Product model: AD16-22FVAH Opening size: 22mm Current range:0-100A Voltage range: AC60-500V Frequency: 0-99Hz Ambient temperature: -25-65 Relative humidity:Less than 98% Product lighting: LED display Error range: within 5V, error is normal Colour:Yellow Material:PC Package Contents: 1 * LED Digital Voltmeter Ammeter Hertz Meter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.