1. The internal use of professional instrument sampling circuits, coupled with unique precision algorithms, ensures the accuracy and stability of the product at the level of software and hardware.
2. With power-off storage function, when the mobile power supply is powered off, it can store capacity and energy data, which is convenient for later viewing and convenient for measuring the energy capacity of the mobile power supply.
3. It can help us clearly understand the resistance value of the charging and discharging power supply current, and better understand the use range of the load.
Voltage: DC 4V-30V (overvoltage protection can be set).
Current: 0-A (overcurrent protection can be set).
Time: 0-99 hours
Countdown: 0-24 hours
Load resistance: 0-999.99Ω
Data output voltage
Instructions for use:
1. Click the button to change the LED display.
2. Double click the button to rotate the LED display.
3. Press and hold the button for 3 seconds to delete all data.
4. Charging signal: The color and speed of the arrow change with the current. When the current changes from low to high, the color changes from green to yellow, orange to red, and the speed of the arrow changes from slow to fast. No power, no signal.
5. Current and voltage calibration method: It uses the standard 5V voltage. Press and hold the button until "factory setting" appears on the LED display. It will automatically calibrate.
1 x tester
1 x carton
1. Due to manual measurement, please allow 1-3cm error. Make sure you don't mind before bidding.
2. Due to the difference of different monitors, the picture may not reflect the actual color of the product. Thanks.