SDM010 3 Phase Modular Volt Voltage Meter Gauge AC 80-500V DIN Rail Mount Digital Display Voltmeter Specification: Function: measure the three-phase AC voltage, and display the voltage value of each phase through the digital tube Type: SDM010 three-phase voltmeter Terminal: 3L+3N Measuring voltage range: AC 80V-500V Measurement accuracy: 1% Measurement rate: >200MS/time Protection class: IP 20 Electrical life: 15000 hours Working conditions: temperature (daily average)35) -5 - +40 Storage temperature: -25 - +70 Relative air humidity: 1-80% (non-condensing) Working pressure: 80-160Kpa Mounting: DIN rail (18mm/0.71in) Shell material: ABS Product size: 81x66x18mm/3.19x2.6x0.71in Note: Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! Please allow 1-2cm measuring deviation due to manual measurement. 1*Voltmeter