Feature: 1. DUAL DISPLAY: The voltammeter can display current and voltage simultaneously for direct and simple reading 2. CLEAR DIGITAL TUBE: The voltmeter use LED digital tube, which can read clearly in all directions and more convenient to use 3. ACCURATE AND EFFICIENT: The DIN rail box is highly accurate and the measurement accuracy is ±2% 4. SAFE AND FLAME RETARDANT: The digital energy meter adopt excellent PC flame retardant material, which is safer and has a long service life 5. DIN RAIL MOUNTING: The voltage current meter uses a standard 35mm rail mount, which is easy to install and widely used Specification: Item Type: Voltage Current Meter Model: SDM002 Material: PC flame retardant Power Supply Voltage: AC50-500V Frequency Range: 50/60Hz Current: 0-63A Accuracy: ±2% Rated Insulation Voltage: 660V Protection Level: IP20 Altitude: ≤2000meter / 6561.7ft Ambient Temperature: -50℃~55℃ Humidity: 50% and 40℃ non condensing Storage Temperature: -30℃~70℃ Size(LxW): Approx. 84 x 37mm / 3.31 x 1.46in. Package List: 1 x Voltage Current Meter