USB 3.0 Power Monitor (Red) YZXstudio Voltage Current Meter High Resolution OLED

USB 3.0 Power Monitor (Red) YZXstudio Voltage Current Meter High Resolution OLED Accelerated charging: can be inserted into the computers USB port or non-original USB charger, the charging identification signal automatically into the original charger, the charger on the phone into the original charging speed. Note that this function does not change the output voltage, does not support the normal charger into QC2.0 charger, it can not amplify the output current. Charger Type: You can plug a USB port into a USB port of unknown or mobile power and detect a specific charging identification signal through the USB port to easily identify the appropriate phone charging method. Use this feature is not recommended to take the phone, otherwise the phone will interfere with recognition. D + D-voltage: that is, the data line voltage, the voltage can be divided according to most of the charger type. You can refer to this voltage is used to determine the recognition mode USB port charging. Plastic: Plastic shell version to send dust debris performance is much better, the hand can not touch the circuit is not easy to interfere with the circuit. PCB frame version no shell, but the three-tier structure of the core circuit protection is also very good, good heat dissipation. Interface: Two USB3.0 and USB2.0, USB3.0 backward compatible with USB2.0, USB3.0 USB3.0 devices can be used to test the operating current, USB2.0 interface is more suitable for testing the normal charger and USB2. 0 device operating current. Voltage: support input voltage range, it is recommended to work below the nominal value, if less than the nominal value may not work, then higher than the nominal value or even burn out. ZY1252 high-end become the first to support 24V USB table. Current: The input current range is supported. It is suggested that the operation should be normal if the operating voltage is less than the nominal value greater than 3A. However, the USB port can not withstand high current and may burn the USB port. Board sampling resistor supports up to 6A, for additional current can change an external sense resistor support 20A. Resolution: The smallest change in voltage or current capacity that can be read, representing a higher resolution that identifies subtle changes in voltage and current capacity. Accuracy: The percentage of the final reading accuracy and the range of the last digit of the reading. The smaller the smaller the accuracy percentage, the smaller the range, the more stable the reading. ZY1252 up to 0.1mV 0.1% accuracy, effective reading of 5, automatic range 0-30V voltage test USB table. Line Loss: Loss includes current sampling and USB contact resistance loss. The smaller this value represents the smaller the voltage loss across the USB table. The ZY1230 and ZY1231 are already USB watch limits, while the new ZY125x series is a new low. Security capacity: ampere hours, 1A current 1 hour, than 1Ah, 1Ah = 1000mAh, is the most commonly used mobile power and battery capacity units. Measure battery capacity and commonly used mobile power capacity. Hour capacity: 1 hour per hour, 1 hour per hour, compared with 1Wh, 1000Wh = 1 kWh, relatively accurate expression ah, so in the world is very common. Ah * voltage = Wh due to power = voltage x current. This parameter measures more accurate and convenient mobile power capacity, with the meter can measure the efficiency of the charger. Charging time: When the charging current is greater than the set trickle current, start to walk. Use this feature to measure the time it takes to get a complete device. The device can also be used to accumulate working hours. V2.5 version of the new features. Temperature: Built-in chip temperature, no load does not heat, the reading is about the ambient air temperature. V2.5 version of the new features. Memory: At present, all models are ferroelectric FRAM memory, battery life equivalent to an unlimited 1 billion, thus ensuring a second can save 300 years of capacity is not bad. So far, the only form that uses this high-end USB memory. Static power consumption: The default brightness lights up the screen because the USB meter is currently consumed. The machine uses a 32-bit processor + external ADC, all models are low, low power consumption, 4.5mA 6mA opening screen.