Measure display 3 Phase AC Power Voltage. Type:SDM010 three Phase Voltage Meter Terminal for wiring: 3Land3N Measurement voltage range:AC 80V-500V Measuring accuracy:1 percent Measuring rate: 200MS or time Protection degree:IP 20 Electrical Life:15000 hours Working Conditions:temperature(with daily average 35 ) -5-and40 Storage temperature:-25-and70 Air relative humidity:1-80 percent (no condensation) Working pressure:80-160Kpa Mounting:DIN rail (18mm) Colour:White Material:ABS Package Contents: 1 x 3 phase Din Rail Voltage meter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.