18MM Din Rail Mount Three Phase Voltage Meters AC 80-500V Mini Red Figure Modular Voltmeter Gauge Indicator Digital Display Description Type:SDM010 Three Phase Voltage Meter Terminal for wiring: 3L+3N Measurement voltage range:AC 80V~500V Measuring accuracy:1% Measuring rate:>200MS/time Protection degree:IP 20 Electrical Life:≥15000 hours Working Conditions:temperature(with on daily basis average ≤35℃ ) -5℃~+40℃ Storage temperature:-25℃~+70℃ Air relative humidity:1-80% (no condensation) Working pressure:80~160Kpa Weight:75g Mounting:DIN rail (18mm)