Bảng giá High Precision USB Detector Voltage Measurement Range 3.7V-10V - intl

Giới thiệu sản phẩm High Precision USB Detector Voltage Measurement Range 3.7V-10V - intl

Specifications:

Product Name: USB Current Voltmeter
Display: 0.91-inch OLED display
Voltage measurement range: 3.7V-10V
Current measurement range: DC0.00A-3.00A
Voltage measurement accuracy: ± (0.3% + 1 word)
Current measurement accuracy: ± (0.5% + 2 words)
Total capacity: 0-99999mAh
Capacity resolution: 1mAh
Refresh rate: 2 times / second
Display color: blue
Weight: 14G
Size: (L x W x H) 57 x 20 x 12mm/2.24 x 0.79 x 0.47in
1. the screen rotation function: Press the back button display interface will rotate 180 degrees to adapt to the left and right sides of the computer when using the USB port perspective, and automatically remember the next boot mode.
2. Power-down storage function: When the module is shut down, the accumulated mAh capacity will be automatically stored in the internal EEPROM. The next boot capacity part will flash to remind the last accumulated capacity until this cumulative capacity exceeds 1mAh, the previous data is automatically cleared, Restart counting.
Calculate mobile power battery capacity and efficiency:
Ah data x output voltage/battery voltage/ efficiency = mobile power battery Ah (the output voltage is generally 5V, the battery voltage is generally according to 3.7V, efficiency generally 85-90%)
3. over-voltage and under-voltage reminder: When the voltage is lower than 4.7V or higher than 4.3V, the LCD screen will be flashing arrows to remind, flashing can not be closed, automatically disappear when the voltage is normal