Feature: 1. Smart Testing: Comes with a wide voltage measuring range of AC 80-500V and 1% high accuracy to simplify your working. 2. Broad Utility: Allows for wide application on various machine, automation, equipment control and so on, very useful. 3. Clear Viewing: Equipped with 3pcs screen for the digital display on the real time date, the voltmeter is easy to use. 4. Good Material: Made of premium ABS material, the modular voltage meter is not likely to malfunction and very durable. 5. Easy to Install: Light in weight and compact in size as well, the whole DIN rail mount is very convenient to complete. Specification: Item Type: Voltage Meter Model: SDM010 Material: ABS Terminal: 3L+3N Measuring Voltage Range: AC 80V~500V Rated Frequency: 50/60Hz Measurement Accuracy: 1% Measurement Rate: >200MS/time Protection Class: IP 20 Electrical Life: ≥15000 Hours Working Environment: Daily average temperature≤35℃, -5℃~+40℃. Storage Temperature: -25℃~+70℃ Relative Air Humidity: 1-80%, non condensing. Working Pressure: 80~160Kpa Mounting: DIN rail, 18mm / 0.71in, approx. . Package List: 1 x Voltage Meter