Pressure measurement range: 0-5A/0-8A Current measurement range: 0-99999mAh Accumulated capacity range: 0-99999mWh Accumulated power range: 0.00-150W Power metering range: 0.00-150W Impedance measurement range: 1999.90 Temperature measurement range: 0-80 degrees Celsius 0-80 ° C Timing time input interface output interface: 5A high current USB interface/Type-C interface USB D+voltage range: 0V2.99V Refresh time:500mS/time500mS/time Measurement rate: approximately 0.5 times/second Display screen type: approximately 0.5 times/second Self consumption current:0.02A Working temperature: 10+60 ° C -10+60 ° C Working humidity: 1080 (no condensation) 1080 (no double) Working pressure: 80-106kPa Packaging includes 1 * Tester 【USB Current Meter current and voltage cycle, easy to use and practical.Resolution : Voltage 10mV current 1mA, Error : voltage ± 1% current ± 2%. 【LED Display】Made high-grade liquid crystal display, with low power consumption, bright and clear enough to monitor parameters on screen. Ideal for a wide range power bank capacity and power testing; testing charging speed and quality data cables and charging cables 【Power outage storage function】Temporarily store current capacity and power when power is off, which is convenient for subsequent viewing. currently capacity and energy is accumulated when power is turned back on. If accumulation is not required, can be cleared manually