The LevelRat by Keller America is designed for lift station level measurement. Its Kynar® diaphragm combines the non-stick properties of Teflon® with superior resistance to puncture and abrasion. The result is a small, non-fouling level transmitter fit for use in even the worst environments. The transmitter also includes the company's guaranteed lightning protection, at no additional charge. This feature is standard on all 4-20 mA equipped LevelRats and provides a lifetime warranty against damage from electrical surge.