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: Note: 1. Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. 2. 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 make sure you don't mind before ordering, thank you! About Shipping: 1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly. 2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. 3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours Hope you have a pleasant shopping experience!