Welcome to our store! 1. MAIN APPLICATIONS: Voltage ammeter can be used to monitor batteries, solar panels, railway models, RVs, motorcycles, household batteries, engines, etc. 2. CLEAR DISPLAY: The digital voltmeter ammeter features a clear and bright 1.57-inch LED screen to display voltage and current values. 3. ACCURATE CALIBRATION: The volt tester amp detector uses voltage and current calibration potentiometers and comes with 2 connecting wires for easy use. 4. TECHNICAL PARAMETERS: Voltage ammeter measures voltage range from 0.0V-100V, supports current test range 0-10A, 0-50A, 0-100A (there are 3 ranges). 5. DURABLE ABS: DC voltage ammeter uses excellent ABS material, has impact resistance, scratch resistance, and is environmentally friendly. Item Type: Voltage Ammeter Model: TJ0810 Operating Voltage: 4.5-30V DC Working Current: <=20mA Display: 1.57 inch LED digital tube display Display Color: Red and Blue Voltage Measurement Range: 0.0V-100V Current Test Range: 0-10A, 0-50A, 0-100A (there are 3 ranges) Voltage Resolution(V): 0.1V Current Resolution(A): 0.01A Measurement Accuracy: 1% Minimum Resolution(A): 0.01A 1 x Panel Head 2 x Connecting Line 1 x Shunt Customers are our top priority. If you find any issues with your product after receiving it, such as damage or incorrect quantity, please contact us immediately. We strive to provide you with the best after-sales service.