USB kiểm tra điện áp KWS-V21

[2.10]KWS-V21 USB Current Voltage Capacity Tester Volt Current Voltage Detect Features: 1. The working time and capacity display has a memory function after power off. 2. Press the RTZ reset button for 3 seconds and the screen display will be reset. 3. USB intelligently monitors current and voltage capacity. 4. Portability: This product is small in size, light in weight, and very convenient to carry. 5. Good quality: This product is made of high-quality materials, exquisite workmanship, very good quality and long service life. Description: It can also help safe charging and monitoring your charging data in real time. Specifications: Model: KWS-V21 Measuring range: 4-20 (V) Input voltage: 4-20 (V) Output voltage: 4-20 (V) Ambient temperature: 60 (℃) Dimensions: 59*23 (mm) Voltage measurement error: 1-2% Package Included: 1 * USB Current Voltage Capacity Tester Notes: 1. Please allow 0-1 inch error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from real object.