DROK USB 3.0 Hub Protector Multi Tester, OLED Screen Pocket Digital Multimeter, DC Voltmeter Ammeter Capacitance Meter Thermometer Energy Time Battery Monitor, OTG Connector Output Auto Off

DROK USB 3.0 Hub Protector Multi Tester, OLED Screen Pocket Digital Multimeter, DC Voltmeter Ammeter Capacitance Meter Thermometer Energy Time Battery Monitor, OTG Connector Output Auto Off

• Not only a Multimeter but also a protector: our drop USB digital meter is a practical test tool that can be used to measuring Voltage current temperature capacity energy time via your electronic devices simultaneously furthermore, this gauge has Auto shut down function when it is over Voltage, under Voltage or full charged, effectively protect your mobile devices
• Multiple protections, Intelligent and safe: this ideal USB multiple detector owns over-voltage, under-voltage, over-current, under-current and under-current delay time five protections it will monitor real-time input Voltage/current intelligently when the input Voltage/current is over/under the limit Voltage/current, the input will be shut D automatically to protect the panel and the mobile device you are connecting
• Effortless operation: this pocket USB digital Multimeter achieve one button operation you can easily rotate the screen, switch capacity unit/data set, clean capacity, shut D screen by the Key in the back of meter and it is portable and light weight, you can monitor the output Voltage and current of mobile charger cables, power use of raspberry pi or arduino board anytime and anywhere you want
• Clear OLED display, low power consumption: drok USB monitor adopts 0 91″ high quality OLED display, which has advantages of high Brightness, high resolution, Stable and Clear digital display and low power consumption it has bright white font and black background, Clear and soft to read, even in Dark condition
• Hurry to get yours: we offer you 100 percent risk-free satisfaction guarantee to let you buy with confidence this excellent drok USB pocket USB protector which can help you reduce the damage during charging do you love your phone, hurry to get one to protect it

<b>Do you know if the charging voltage and current is within the acceptable voltage and current range of your monile device?</b> <br> <br> <b>Do you want a protector for your phone when the input voltage is over/under limit voltage?</b> <br> <br> <b>Parameters:</b> <br> <br>Voltage measurement range: DC3.70-9.99-13.0V <br>Current measurement range: DC0.00-3.00A <br>Temperature measurement range: -10℃～60℃ <br>Capacity accumulation range: 0-9999mAh-99.99Ah <br>Energy accumulation range: 0-9999mWh-1300Wh <br>Voltage measurement accuracy: ± (0.3% + 1digit) <br>Current measurement accuracy: ± (0.5% + 2 digits) <br>Temperature measurement error: ±2℃ <br>Run time range: 0-99h59min <br>Update rate: 2 times/s <br>Quiescent current: about 10mA <br>Font color: White <br>Product size: 64.0×21.6×11.2mm (L×W×H) <br>Port mode: compatibility USB 2.0 /USB 3.0 <br>Display screen: 0.91” OLED screen <br> <br> <b>Intelligent Portections:</b> <br> <br>✓Over-voltage protection <br>✓Under-voltage protection <br>✓Over-temperature protection <br>✓Over-current protection <br>✓Under-current delay time protection <br> <br>More information please refer to the product instruction.