Features: There are 2 types, one is with backlight, another without, choosing based on your needs. DIN-Rail Electric Meter is for dividing electrical equipment into several separate electrical installations, as well as medical consumption in each individual area. This KWh meter is suitable for measuring single-phase AC active energy with rated frequency of 50Hz or 60Hz, for fixed installation indoors. High reliability, small size, light weight, beautiful appearance , advanced technology, 35mm DIN standard rail installation, etc. The Electronic KWh Meter has good anti-electromagnetic interference, low power consumption, high precision, high overload, high stability, anti-stealing, long life. Package Includes: 1x Single Phase Energy Meter Specifications: Material: Plastic Accuracy: First Grade Reference Voltage: 220V/230V 50/60Hz Reference Current (Max. Current): 5(80)A Insulating Property: 1min 4KV Alternating Voltage, 1.2/50us 6KV Waveform Impulse Voltage Display: LCD Backlight / LCD Display Installation: 35mm DIN Rail Wiring Method: Up-out and down-in/up-in and down-out Power: 17000W Environment Temperature: -20C~+50C Pole Width: 17.5mm/0.7in Functions: Display electricity, voltage, current, frequency, power factors note: Please allow 1-3cm error due to manual measurement. pls 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.