Mahr Federal Millimar P2004F Inductive Probe

The Mahr P2004F Millimar series inductive probe includes a non-detachable 8' length of cable and is intended for use with Millimar series evaluation instruments (sold separately) that accept Mahr Federal-style probes. The probe has a measuring range of +/- 0.079" and a 0.75N measuring force at the electrical zero point. This inductive probe meets Ingress Protection (IP) 64 standard for protection from dust and water, and is suitable for use in a variety of linear and angular measurement applications, such as the radial or axial runout of a machined piece.

Indicator gauges, also called gages or dial indicators, are precision instruments that measure short linear distances. They are commonly used for detecting deviations from tolerance limits, such as the amount of surface distortion, or runout, on a round or cylindrical workpiece. They have two styles: digital indicator gauges and dial indicator gauges. Digital indicator gauges use an electronic sensor and display measurement through an LCD or other digital display. Dial indicator gauges measure through a spring-loaded plunger driven into its shaft. The pointer on the dial display marks the degree the plunger is depressed, while an additional turn counter may track the number of times the pointer has spun around the dial. For all types of indicator gauges, runout is typically measured when the tip of the plunger (the point) is held perpendicular to the rotating workpiece. Indicator gauges are typically used in manufacturing, machining, and mechanical engineering.

Mahr Federal manufactures dimensional metrology instruments and metering systems. The company, founded in 1861, is headquartered in Goettingen, Germany.