A part of the review has been auto-translated.
The ends to be connected to the sensor in the cable plugged next to the product are made of the same color as the sensor cable. Product. label information in the images appears in Chinese, but the label on the product is printed in English. It is not possible to confuse which cable to connect to where. It is quite easy to use. You connect the sensor from the package to the plug-in cable from the package according to its colors. You will also supply energy with the red and black cable. When the device cannot read the cycle, LLLL will appear on the display. You glue the tiny round magnet from the sensor's package to the object where you will measure the number of turns. When you bring the sensor closer to the magnet while the object is turning, it will start to show the number of revolutions on the display. The display of the device is four digits, so it can display up to 9999. One problem I have encountered is the strength of the magnet coming out of the package is a bit weak. Difficulty in detecting the sensor. It would be nice if the magnet was a little stronger.
works fine.