SPECIFICATIONS Superior Anti-rust process Epoxy power coated steel tube and high grade plateed hardware Excellent water proofing Provide 2 deals and 3 drain holes Super Read Sensor Ruthenium plated contacts ensures longer sersor life Hermetically sealed in a clean atmosphere to eliminate ill effects of dust, corrosion O oxidation Advanced design allows no opportunity for sticking, binding or wearing of hinged joints. Plastic impregnated for risk free installation and easy to replace.