<p>1. AC Meter This Meter Is Mainly Used To Measure The Frequency-To-Noise Ratio On The Mains 110v.</p> <p>2. Amplify And Play The Detected Noise Through The Small Speaker Inside The Instrument.</p> <p>3. 50\/60hz Power Frequency</p> <p>4. Room Temperature 13-33 Degrees; Application Environment 2000 Meters Above Sea Level</p> <p>5. Easy To Use</p> <p>Input Voltage:AC 110V-120V</p> <p>Power Frequency:50\/60HZ</p> <p>Working Environment:Room Temperature 13-33; Altitude 2000 Meters</p> <p>Measurement Frequency:300Khz-700Khz</p> <p>Noise Indication:3.5 Digit Black And White Lcd Digital Display</p> <p>Note:Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Will Not Affect The Use</p> <p>Plug Type:US Plug, it applies to Canada, India, Mexico, Thailand, Taiwan, the , the Philippines and so on.</p> <p>Colour:As Shown</p> <p>Material:ABS</p> <p>Package Contents:</p> <p>1 * Broadband AC Noise Analyzer</p> <p>1 * Power Cord</p> <p>Only the above package content, other products are not included.</p> <p>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.</p>