FW Murphy® Swichgage® 20 Series Temperature Gauge, 130 to 250 deg F Temperature Rating, 6 ft L Capillary, 2-1/4 in L

The 20 Series (2 inch/51 mm dial) SWICHGAGE® models are diaphragm-actuated, temperature-indicating gages, with built-in electrical switches for tripping alarms and/or shutdown devices. The gage mechanism is enclosed in a steel case coated to resist corrosion. A polycarbonate, break resistant lens and a polished, stainless steel bezel help protect this rugged, built-to-last instrument. These vapor actuated gages feature a sealed capillary tube and a sensing bulb. When subjected to heat, the liquid in the sensing bulb changes to vapor creating pressure against the diaphragm mechanism. The diaphragm translates this vapor pressure into a mechanical gage reading. For series 20T, the gage pointer acts as a temperature indicator and as one switch pole which completes a circuit when it touches the adjustable limit contact.

FW Murphy® Swichgage® Temperature Gauge, 20 Series, Specifications: 130 to 250 deg F Temperature Rating, 6 ft L Capillary, Polycarbonate/Stainless Steel, 2-1/4 in Diameter, 2-1/2 in Depth, For Use With: JOHN DEERE Engines