PORTABLE DESIGN: The pointer-type frequency meter features clear scales and a fine-tuning knob for easy operation, making it convenient and practical. SCALE RANGE: The AC frequency meter's scale range is 45-55Hz, allowing it to display the trend of measured electricity simultaneously. PLASTIC CASING: The meter casing is made of excellent ABS material, offering good toughness, wear resistance, aging resistance, and a long service life. APPLICABLE SCENES: Used in industrial and mining equipment, metallurgy, chemical industry, electric power, and various electronic control devices. EASY INSTALLATION: Equipped with mounting screws, this square panel frequency meter is small and compact, making it simple to install and space-saving. Item Type: Frequency Meter Model: 380HZ Voltage: AC 380V Scale Range: 45-55Hz Accuracy: Class 1.5 Color: Black Main Material: ABS Advantages: Can display the trend of measured power Application: Mainly used in industrial and mining enterprises, metallurgy, chemical industry, electric power, complete sets of equipment, and various electronic control devices. Package Includes: 1 x Frequency Meter 2 x Screws