Material: Body: SUS 316 Stainless Steel, Cable: PVC, Float: NBRMounting Methods: Standard SAE 5 Hole PatternOutput Signal: American Standard 240-33 ohms (240 ohms at empty, 33 ohms at full),Resolution Range: 21mm Operational Temperature: -40°F ~ +185°F (-40°C ~ +85°C)Clearance Recommendation: 1″ clearance from the bottom of plastic tanks and 0.5″ clearance from the bottom of stainless steel/aluminum tanks.