Mitutoyo 543-722B Electronic Drop Indicator 1 in

Product Description

The MITUTOYO 543-722B is a digital electronic drop indicator designed for precise dimensional measurement in manufacturing, machining, and quality control environments. It delivers a resolution as fine as 0.00002 inches and an accuracy of 0.0001 inches over a full 1-inch (25.40 mm) range. The LCD display provides clear, direct digital readout in both inch and metric units. Equipped with a data output port, it supports integration into measurement networking and statistical process control (SPC) systems. A licensed metrologist, machinist, or quality control technician typically operates this instrument during inspection and gauging work.

The 543-722B is suited for surface, height, and runout measurements on machine tools, surface plates, and inspection fixtures in both production and toolroom settings. Its flat back and straight connection type make it compatible with standard indicator holders and magnetic base setups. The indicator operates on a CR2032 battery, which is included. Measurements can be taken in inches or millimeters, making it versatile across shops that work in either unit system.

Key Features

• LCD digital display with selectable inch and metric readout
• Resolution selectable at 0.00002, 0.00005, 0.0001, or 0.0005 inches
• Accuracy of 0.0001 inches over a 1-inch measurement range
• Integrated analog bar graphic for rapid deviation monitoring
• Tolerance judgment function with user-set upper and lower limits
• Data output port for SPC system and measurement network integration
• Carbide contact point for extended wear resistance

Compatibility

Designed as an OEM-style electronic drop indicator compatible with standard dovetail and post-type indicator holders and magnetic base systems commonly used in metrology and machine tool inspection setups.

Installation Notes

Mount the indicator using a standard indicator holder that accepts the straight connection type on a flat-back body. Ensure the contact point is perpendicular to the measurement surface to avoid cosine error. Do not overtighten the clamping mechanism on the indicator stem, as excessive force can affect accuracy. Replace the CR2032 battery when the low-battery indicator appears on the LCD.