Specifications: Material: PCB Display: 128 * 64 Input Voltage: 3.6V~30V Input Current: 0.2~3A Voltage Resolution: 0.001V Current Resolution: 0.001A Rated Power: 25W Max. Power: 35W Wire Resistance Measurement: Pressure-drop method Input Interface: USB-A, TYPE-C, Micro USB Capacity: 0~9999.9AH, 0~9999.9Wh Protocol Trigger: for QC2.0, QC3.0, FCP, SCP, AFC Working Temperature: 0~70C Item Size: Approx. 11.5 * 4cm / 4.53 * 1.57in Item Weight: Approx. 57g / 2.01oz Package Size: Approx. 13 * 9 * 2.5cm / 5.12 * 3.54 * 0.98in Package Weight: Approx. 64g / 2.26oz Features: With only a button for easy operation. LCD display for clear reading. With multi-input modes, can set current continuously. Built-in NTC cooling fan for better heat dissipation. Includes power and temperature protection. Compact and portable design, convenient to carry. Can measure wire resistance by using pressure-drop method. Wide Testing Range: Input Voltage: 3.6V~30V; Input Current: 0.2~3A. Note: -Please do not use it over 30V, or it will be destroyed. -Please do not modify it by yourself, or the consequences will be borne by the customer.