Matherne Instrumentation’s Choke Position Indicator System is a 4” electronic choke position indicator used to accurately monitor the choke position in 1% increments from 0% to 100%. The choke position sensor can be used on a variety of chokes in the oil and gas industry and eliminates the need for air lines to the position indicator. The system includes 4” choke position indicator, 100’ of cable, and choke position sensor.