Product Details 

• Operating voltage: DC3-5V
• Operating current: less than 20mA
• Sensor Type: Analog
• Detection Area: 40mmx16mm
• Production process: FR4 double-sided HASL
• Operating temperature:10-30
• Humidity: 10% -90% non-condensing
• Product Dimensions: 62mmx20mmx8mm

Description 

This project will demonstrate how to build a water level monitor using an Arduino Nano, a Solu SL067 water level sensor, and an LED indicator. There are many possible uses for this simple system, examples include monitoring a sump pit (to control pump activation), rainfall detection, leakage detection, or monitoring plant water levels. I built this specifically to monitor the water level of my Christmas tree.