Meters -Digital Voltmeter Ammeter Highlights Generic Digital Voltmeter Ammeter Voltage range of voltmeter ammeter is 0-100VDC, current range is 0.0-10A .The multimeter can clearly display voltage and current at the same time, red for voltage, blue for current. Can be installed anywhere flexibly. The Amp Voltage Monitor Gauge is powered by the measured circuit, no need to connect an additional power source. This amp volt tester is designed with a built-in trimmer potentiometer, allowing you to calibrate the meter easily. Specification: Material: Plastic+PCB Color: Black LED Display Color: Red and Blue Size: Approx. 48x29x22mm / 1.89x1.14x0.87 inch Mounting Holes: Approx. 46x27 mm / 1.81x1.06 inch Wire Length: Approx. 15cm / 5.91 inch Operating temperature: -10~65 Voltage measurement range: 0.0V-100V Current test range: 0-10 A Power supply range: DC 4-30.0 V Error range of voltage: 0.1% Current error range: 1% Working current: Product Notes: Please allow a little manual errors.Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please confirm acceptance before ordering. About Shipping: Please ensure your shipping informations are correct to avoid delivery issues. All orders are shipped within 3 days after payment. Delivery usually takes 8–12 days, The specific delivery time is depend on circumstances. If you have any questions during your purchase, feel free to contact us. We will respond you within 24 hours.