Feature: 1. Using stainless steel probe, high temperature resistance, no pollution and long service life 2. Precise control, can control the liquid level difference between 1 cm to 20 meters, even the water level of the glass can be accurately controlled 3. Isolation transformer, only 10V AC power on the probe, will not hurt the small fish 4. This product is controlled by a single chip microcomputer. The probe voltage is AC 10V, which can transmit 500m signal. 5. It has the functions of joint control of upper and lower pond, drainage of pond and protection against water shortage. 6. Can automatically achieve water tank water supply and drainage, and effectively prevent pool water level, well water supply project 7. Widely used in printing and dyeing, chemical, food, beverage, brewing, sugar making and other industries Specification: Item Type: Water Automatic Level Controller Working Voltage: 220V Load Current: Resistive load 10A, inductive load 5A Power Range: ≤700W Mode Selection: Manual and automatic switching. Package List: 1 x Water Automatic Level Controller1 x English User Manual