This is a high - performance photoelectric water liquid level sensor that operates on optical principles. Its key advantages include excellent sensitivity and no need for mechanical parts, which means less calibration work. The corrosion - resistant probe is easy to mount and can withstand high temperature and high pressure. It comes with an interface adapter for compatibility with the DFRobot 'Gravity' interface, enabling plug - and - play for easy use. The Arduino IO expansion shield is the ideal partner for connecting it to an Arduino. Moreover, it can work at 3.3V, making it compatible with Raspberry Pi, Intel Edison, Joule, and Curie. Note that you should avoid placing the sensor near bright lights or in direct sunlight as it can cause interference. Specification: Model is FS - IR02. It's a photoelectric liquid level sensor with an operating voltage of 5 VDC, output current of 12 mA, working temperature from - 25 to 105 °C. The liquid level detection accuracy is ±0.5 mm, made of PC material, with no limit on measuring range, a lifespan of 50,000 hours, dimensions of 28 x 28 mm (1.1 x 1.1 inches), cable length of 450mm, and weight of 26g. Documents include a wiki and more resources. The shipping list contains one Liquid Level Sensor - FS - IR02 probe and one Liquid Level Sensor convert board.
Using this water liquid level sensor is a breeze. First, connect it to the Arduino with the help of the Arduino IO expansion shield or other compatible devices like Raspberry Pi. Thanks to the Gravity Interface, it's a plug - and - play setup. When installing, make sure to keep it away from bright lights and direct sunlight as these can mess with the sensor's readings. For maintenance, since the probe is corrosion - resistant, you don't have to worry too much about normal wear and tear. But if it's used in a particularly harsh environment, check it regularly. This sensor has a long life of 50,000 hours, so with proper use, it'll serve you well for a long time.
