This energy meter can measure electrical parameters such as energy, voltage, current and power, and auto loop display the readings. Its compact and easy to install, safe to use. Features: LCD display: equipped with a LCD screen displaying digital readings, which is easy to read. Auto loop display four data: the readings of energy consumption, voltage, current and power will be automatically switched in the screen, each one stays for 6 seconds. Quality material and high accuracy: retardant housing to ensure safety, SMT chip technology integrated circuit provides accurate measurement, excellent conductivity, corrosion resistance, and stable performance. Compact and user-friendly: 35mm rail for installation, and can be directly installed in the electric box, occupying only 2P position. Specifications: Material: ABS Model: DDSU1897 Display: LCD Backlight / LCD without Backlight (Optional) Wiring: top points for input and bottom points for output, or vice versa Current: 5(60)A/5(80)A Voltage: 220VAC/50Hz Power: 17000W Mounting: Distribution box / DIN rail Display: LCD Operating Temperature: -20°C~55°C Item Size: 7.85 * 3.65 * 4.3cm / 3.09 * 1.43 * 1.69in Item Weight: 100g / 3.52oz Package Weight: 135g / 4.76oz Package Size: 8 * 5 * 5cm / 3.14 * 1.96 * 1.96in