Product Name: Analog Voltmeter;Model: SO-45;Measuring Current Range: AC 0-300V Accuracy: Class 2.5;Meter Face Diameter: 45mm/ 1.8' Screw Thread Diameter: 5mm/ 0.2';Mounting Hole Diameter: 5mm/ 0.2' Overall Depth: 3.5cm / 1.38';Color: White, Clear, Black Weight: 60g;Package Content: 1 x Analog Voltmeter Several Installing Parts