Feature: 1. MAIN APPLICATIONS: Voltage current meter can be used to monitor batteries, solar panels, railway models, motorhomes, motorcycles, household batteries, motors, etc. 2. CLEAR DISPLAY: The digital voltmeter ammeter has a clear and bright 1.57in LED screen to display voltage and current values 3. ACCURATE CALIBRATION: The volt tester meter amp detector uses voltage and current calibration potentiometers and come with 2 connecting cables for easy use 4. TECHNICAL PARAMETERS: Voltage amperage monitor gauge voltage measurement range from 0.0V‑100V, current test range support 0‑10A, 0‑50A, 0‑100A(there are 3 ranges) 5. SCRATCH RESISTANT ABS: DC voltage current meter adopt excellent ABS material, possess impact resistance, scratch resistance, environmentally friendly Specification: Item Type: Voltage Current Meter Model: TJ0810 Operating Voltage: 4.5-30V DC Working Current: <=20mA Display: 1.57in 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. Package List: 1 x Table Head2 x Connecting Line1 x Diverter Note: The maximum input voltage should not exceed 30V, otherwise there is a risk of burning.