MP3298 Magnetic Pickup (20700162) BUZZER / FLASHING the liquid in the sensing

the liquid in the sensing bulb changes to vapor creating pressure against the diaphragm mechanism

This model has a 4 foot capillary length with a standard 1/2-14 NPT threading

RPM data is supplied by either a Murphy magnetic pickup or by the alternator in your battery charging circuit

(114 mm) Diameter

20BTG-300-4-1/2: 2" B-Series Temperature Murphygage

MP3298 Magnetic Pickup (20700162) BUZZER / FLASHING the liquid in the sensingMP3298: Magnetic Pickup, 3" total length, 3" threaded length, 5 8 18 UNF thread size (20700162) The MP3298 Magnetic Pickup has a total length of 3 inches, threaded length of 3 inches, and thread size of 5 8 18 UNF. It replaces 20 01 0080 and MP100. The leadwire hookup measures 12 inches (305 mm). Magnetic Pickups supply RPM data to a tachometer when mounted at the flywheel ring gear of an engine.