1、Digital measurement display, and it supports Type-C interface. 2、PD protocol direct connection, built-in buzzer for reminder. 3、Reckon by time when charging, full charged reminder of the mobile phone. 4、Built to strict quality control standards, design improved for more durability. 5、Universal for all new and old USB interfaces, supporting mutual charge. Features: 1. Digital measurement display, and it supports Type-C interface. 2. PD protocol direct connection, built-in buzzer for reminder. 3. Reckon by time when charging, full charged reminder of the mobile phone. 4. Built to strict quality control standards, design improved for more durability. 5. Universal for all new and old USB interfaces, supporting mutual charge. Specification: Item Type: Tester Voltage Measurement Range: 3.30V~ 30.0V Resolution Accuracy: 0.01V Current Measurement Range: 0.00~ 5.10A Resolution Accuracy: 0.01A Capacity Accumulation Range: 0~99999mAh Resolution Accuracy: 0.001Ah Power Accumulation Range: 0~999999mWh Resolution Accuracy: 0.001Wh Power Measurement Range: 000.00~ 150.00 W Resolution Accuracy: 0.01W Impedance Measurement Range: 1~ 999.9Ω Resolution Accuracy: 0.1Ω Temperature Measurement Range: 0~80°C Resolution Accuracy: 1°C Timing Maximum Time: 999 hours 59 minutes 59 seconds Resolution Accuracy: 1 second Timing Charging Reminder Setting: Countdown 24-hour arbitrary setting USB D+ Voltage Range: 0V~ 2.999V Resolution Accuracy: 0.001V USB D- Voltage Range: 0V~ 2.999V Resolution Accuracy: 0.001V Reminder Threshold of Mobile Phone Full Charged: <2W/ 0.5 hours Refresh Time: > 500mS/times Measurement Rate: About 0.5 times/s Alarm Mode: Siren sound + display prompt double warning Display Type: Micro power LCD module LCM white font Chinese and English display Product Size: Approx. 60x60x11mm/ 2.4x 2.4x 0.4in Self-consumption Current: < 0.02A Working Temperature: -10~+60°C Working Humidity: 10~80 (no condensation) Working Pressure: 80~106kPa Product Weight: Approx. 37g Package List: 1 x Tester 1 x Adapter