The LKI series multi-point tank level indicator is a convenient solution for liquid level indication. They are offered in all 316 Stainless Steel, Stainless & Buna, or Polypropylene, and are available in lengths up to 8 feet long. The LED indicator lights are housed in a ABS plastic wall mountable Nema-4x enclosure and plug into a standard 120vac outlet. The lights provide clear tank level indication reading of Full, 3/4,1/2,1/4,Low, & Empty. The floats are equally spaced along the length of the stem. As the level in the tank rises each float trips an internal reed switch which powers each corresponding LED light.
Operating Principle A series of reed switches are positioned inside the stem at specific intervals. A single pole double throw switch is used for the low/empty level. When the tank is full all the lights are on except for the empty light. The lights will go off as the level falls until the low/empty level is reached. As the level falls below the low level the low light will go off and the empty light will come on.