10 In 1, USB smart detector, current, voltage, timing, timing, power, watt-hour, internal resistance, over-current / over-voltage protection, power-down data is automatically saved.
Click the button once to view the W Wh Ω, while long pressing the button for 5 seconds to remove timing and Wh stored data, and click the button to enter the digital delay setting, however once again hit every single plus 30 minutes long pressing for 5 seconds to save set.
Digital display; Mini size, portable; USB ports