2 x Analog Voltmeter: 1 x a + 1 x b Made of plastic material and finished by good technology. 85C1-A Analog Current Panel Meter with accuracy of Class 2.5 can measure current between 0 AMP and 5 AMP. Size: ~2 1/2 inch x 2.2 inch x 2 1/8 inch (L x W x H) Measures voltage range of DC 0-15V with accuracy of Class 2.5. Clear and easy to read scale and a button for fine tuning the dial. For electronic applications, auto circuit or other Voltage measurement devices. With dial pointer,there is no difficulity in seeing the display. A good car accessory to measure voltage efficiently and quickly. This 85C1-A Panel Meter is specially designed for measuring current and monitoring battery & electrical system. The DC 5A Ammeter offers users great simplicity and easily reading. The Analog AMP Panel Meter is low power consumption and long lasting. Product Name : Analog Voltmeter; Model : 85C1; Measuring Voltage Range : DC 0-15V Accuracy : Class 2.5; Meter Face Size() : 6.3 x 5.5 x 1cm/2.5inch x 2.2inch x 0.39inch(L x W x T); Thread Size:0.28 x 0.8cm / 0.11inch x 0.30inch(Dia. x L) Overall Depth : 5.8cm / 2.28inch Color:White Material: plastic Package Contents: 2 x Analog Voltmeter 2 x Screw Nuts 4 x Washer Only the above package content, other products are not included. Note: Light 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.