Service:Compatible liquids.Resolution:1/4″ (6.35 mm).Temperature Limits:Buna-N Floats: 180°F (82°C) in water, -40 to 230°F (-40 to 110°C) in oil; SS Floats: -40 to 230°F (-40 to 110°C).Pressure Limits:Buna-N Floats: 150 psig (10 bar); SS Floats: 300 psig (21 bar).Power Requirements:Proportional Voltage Output Models: 10 to 30 VDC; 4 to 20 mA Output Models: 10 to 40 VDC.Loop Resistance:1.4 kΩ maximum.Electrical Connections:Proportional Voltage Output Models: 24″ (16 cm) free leads #22 AWG, TFE jacketed; 4 to 20 mA Output Models: junction box.Enclosure Rating:4 to 20 mA Models: junction box.Mounting Orientation:Vertical ±20°, maximum length of 72″ (183 cm).Specific Gravity:Buna-N Floats with SS or Brass Stem: 0.55 minimum; SS Floats with SS Stem: 0.75 minimum.