1、Compact shape and lightweight, convenient installation and easy to use 2、It can measure and show DC voltage, providing fast response 3、The voltage meter uses 3 1/2 digit red LED display, clear to read 4、It offers high accuracy, dependable performance and accurate measurement 5、Universal case, flat rectangular shape and dark red window, practical to use Features: Compact shape and lightweight, convenient installation and easy to use. It can measure and show DC voltage, providing fast response. The voltage meter uses 3 1/2 digit red LED display, clear to read. It offers high accuracy, dependable performance and accurate measurement. Universal case, flat rectangular shape and dark red window, practical to use. Specification: Material: Plastic + Aluminum Model: 5135A Item Type: 3 1/2 Digital Panel Meter Range: DC5V/DC10V/DC20V, DC50V/DC100V/DC200V (optional) Display Accuracy: ±0.3% Measuring Accuracy: ±0.5% F.S ±2 digit Response Time: 0.3(s) Display Range: 0~±1999 Polarity Display: Only "-" display (only DC) Display: Red LED (14.2mmH) Operation Temperature: 0~60℃ Operation Humidity: 20~95%RH Power Supply: DC5V±0.2V/150mA Installation: Panel Mounting Size: Approx. 79*43*24 mm / 3.1*1.7*0.9 in Package list: 1 * Voltmeter Panel 2 * Connecting Line