Elm327 5v usb can

USB Current Voltage Tester Checker Power Meter Monitor^#^^#^This little USB Voltage Current Tester has been very useful in ferreting out both weak chargers and poor USB cables by changing cables and chargers systematically and checking the current draw and voltage^#^Great Charging Monitor to have in your bag for testing power draw on USB devices.Very handy meter for checking line voltage and current^#^The Homern Charger Doctor is a great way to see if your devices and batteries are putting out the voltage and amperes that the producers claim^#^It's a goofy little usb digital multimeter. Premium quality, low cost solution for testing out USB battery packs, cables, and chargers^#^A Must Have Gadget for DIY Fans and Hi-Tech Lovers to Charging USB interface Electronic Devices Faster.^#^^#^Product description^#^How many times we seen posts asking "my phone is not charging fast enough" or "I have a bunch of usb cables and old chargers, which one to use"? So how do you find this perfect combo of charger and cables to give you the fastest charging speed? Use our Charger Doctor!!!^#^^#^The USB Charger Doctor is a small device that goes in series with your usb cable to measure the devices voltage and current consumption.^#^^#^Within a few minutes you are able to get rid of all faulty phone chargers and cables. What a time saver and problem solver easily one of best diagnostic tools available.^#^^#^This is a great USB Charger Doctor. Plug it in to any USB port or charger and it automatically tells you what the voltage and charging Amperage is. Great for finding out if your wall charger is any good, needs replaced or how much power a device is drawing. Large LED numbers, without external power supplies^#^^#^Feature:^#^The display cycles every 5 seconds between amps and volts in a red LED display?^#^Great tool for verifying USB voltage and device charging rate^#^Detect any USB charger such as PC USB, home charger, car charger^#^Widely 3V-8V Voltage and 0A-3A Current Test Range Support with Accurate Readings^#^Extremely Portable, Light Weight, Small Size and Durable, No Extra Cable or Power Supply Needed^#^Specifications^#^Scope of work: Current (0-3A) can detect mobile phone charger voltage compliance DC5V?^#^Working Range: U = 3~7.5V I = 0~3A^#^Resolution:10mV / 10mA^#^Error Range: voltage <1 current <2 ?^#^Full scale drop: (When measuring current) 200mV^#^Operating Temperature: 0-60^#^Screen size: 0.4inch^#^Dimensions: 6.8 * 2.3 * 1.2cm^#^1 x USB Charger Doctor

Bullet point: ^#^It has a silent design and an overload, on the protection against overloads, to offer a safe, silent and reliable use. ^#^It has three adjustable wind speed, the first gear is the breeze, the second gear is the natural wind, and the third gear is the strong wind. ^#^Small size, light weight and easy to carry. ^#^Simply fold the handle and put it on the desk. ^#^It works with and can be recharged with a 5V output adapter, a USB charger, a laptop, a power bank and other devices. ^#^ ^#^Description: ^#^Material: ABS envmental protection material ^#^Dimensions (approx.): 92 * 36 * 205 mm / 3.62 * 1.42 * 8.07 in ^#^Weight: about 235 grams (including battery weight) ^#^Output power: 4.5W ^#^Input current: DC 0.5A / 1A ^#^Output voltage: DC5V-9V ^#^Input voltage: DC5V ^#^ ^#^Note: Try not to use this product when charging, so as not to increase the battery loss. ^#^ ^#^Package include: ^#^1 *fan ^#^1 *1500 mA 18650 lithium battery ^#^1 *data line