Features: Accuracy: level1.5 & 2.5. Working position: vertical. Influence of pressure resistance-: when the self-frequency fixed value changes by 15%, the error of the indicated value will not exceed the basic error. Mechanical property: withstand the acceleration of 30m/s2-, impact frequency 80-120times per- minute-, two hours transport shock. Suitable for installation on display panels and large switch boards of various control systems & distribution systems-. Specifications: Material: plastics Size: 79x72.5mm/3x2.85-inch Accuracy: level1.5 & 2.5 Using condition: -20~+50 Relative humidity: 85% or less Note: Please allow 1-3cm error due to manual measurement. please make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Voltage Gauge