USB 3.0 OLED Comprehensive Tester 5 Bit Current 4 Bit Voltage Meter Voltmeter Ammeter Power Capacity For Charger Power Bank ,Live Data

Voltage measurement accuracy: ± (0.2% + 1digit) Current measurement accuracy: ± (0.1% + 4 digits) Time measurement range: 0-99h59min59s Temperature measurement range: -10-65 Temperature measurement error:±2 Screen brightness setting: 1-7 level Delay closing screen time: 1-9 mins Voltage curve range: 04.0-24.0V Current curve range:0.00-3.00A Update rate: 2Hz