Features: Use in vertical direction. The lines and fonts of the dial are clear. Widely used for various electric control devices. Light and simple product, with good practical performances, smooth appearance, crack resistant and brittleness resistant. Applicable to the power off parameters of display panels and large switch panel indicator cabinets installed in various control systems and power distribution system, such as AC and DC current, voltage, power factor, power, synchronization value, frequency, deployment voltage and overload current. Specifications: Material: Plastics Size: Approx. 8x10x6.2cm/3.15x3.94x2.44in Accuracy: 1.5 & 2.5 Level Working Temperature: -20 to 50℃ Relative Humidity: ≤85% Withstand Voltage Influence: when the self frequency setting value changes by ± 15%, the error of the indicated value will not exceed the basic error Working Position: Vertical Direction Package Includes: 1x Voltmeter note: The instrument shall not be impacted or collided. The instrument shall be stored in a room with a temperature of 0~40℃ and a relative humidity of no more than 85%. The air shall be free of corrosive gases and harmful substances.