Fangrui Product Details Comprehensive Measurement Range: This Versatile 3 In 1 Meter Accurately Measures Voltage (ac 60-500v), Current (0-100a), And Frequency (20-75hz) With A Precision Class Of . It Operates Effectively Within A Temperature Range Of -20 To +60c, Ensuring Reliability In Various Environments. Clear And Bright Display: Equipped With A Large Square Led 3-digit Display, This Voltmeter Ammeter Provides Instant, Clear Readings Of Electrical Parameters. The Vibrant Red Led Display Ensures Visibility Even In Low-light Conditions, Making It Ideal For Monitoring Electrical Systems. Durable And User-friendly Design: The Robust Lampshade Of The Indicator Light Offers Excellent Impact Resistance, Enhancing The Durability Of The Meter. Installation Is Straightforward-simply Thread The Load Cable Through The Included Current Former To Start Measuring Electrical Flow. Versatile Applications: Ideal For A Wide Range Of Industrial And Commercial Applications, This Digital Meter Can Be Used For Signal Indication In Sectors S