Welcome to the store! Features: Impact-resistant ABS shell with a soft over-molded rubber handle designed for ergonomics. Bright blue indicator light for easy visual indication. Standard Type-C protected AC power outlet. Tests GFCI outlets and standard outlets connected in series with GFCI outlets. Press the button to display 1-9 groups of charging data; long-press the button for 3 seconds to clear one set of charging data; double-click the button to rotate the display. Specifications: Measurement Range: 4-30 (V) Input Voltage: 4-30 (V) USB for Smart Detector: Current, Voltage, Capacity, Power, Temperature, Timing, Type-C Interface Current: 0-5.1A Voltage: 4-30 V Time: 0-99 hours Power: 0-155 watts MAh: 0-99999 mAh Internal Temperature: 0-80 degrees Note: No retail package. Please allow 0-1 cm error due to manual measurement. Ensure you don't mind before bidding. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you. Package Includes: 1PC x USB Tester Your satisfaction is our top priority. We will provide you with the best service. If you find any issues after receiving the product, such as damage, incorrect quantity, etc., please contact us immediately, and we will provide you with the best solution!