Water level monitoring alarm (display part) Abstract: The water level monitoring alarm is a water level monitoring system used to monitor the water level in rivers, lakes and seas. In practical applications, the system can accurately display the height of the water level. The water level monitoring alarm is innovatively designed with the characteristics of small size, high sensitivity and stable operation. More importantly, it can receive signals remotely and realize remote automatic control, greatly improving technical performance. Now we will focus on the internal circuit, performance and application of the display part of the water level monitoring alarm. Keywords: water level monitoring alarm MC74HC4511N chip common cathode display digital tube
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