Spi CMS160809196 Electronic Drop Indicator 1 in Digital

Product Description

The SPI CMS160809196 is a digital electronic drop indicator designed for precise dimensional measurement in metrology and quality control applications. It features a 1-inch maximum measurement range with a resolution of 0.0005 inches and an accuracy of 0.0012 inches, making it suitable for surface comparisons, runout checks, and part inspection tasks. The indicator uses a digital display for direct numeric readout, eliminating interpolation error common with analog dial faces. The Center Lug Flat Back mounting style provides stable fixture attachment to magnetic bases and indicator holders. It accepts a standard 3/8-inch stem for compatibility with common holding arms and comparator stands.

This drop indicator is used in machine shop, tool room, and inspection environments where both inch and metric readings are required. It is appropriate for residential and light industrial metrology setups, including surface plate inspection, fixture verification, and incoming part quality checks. The dual-unit display supports inch and metric modes, accommodating shops that work to both measurement standards. Machinists, quality technicians, and metrologists are the typical end users. The CR2032 battery powers the digital circuit, keeping the unit compact and field-serviceable.

Key Features

• Digital display with 0.0005-inch resolution and 0.0012-inch accuracy
• 1-inch maximum measurement range with 0.00-inch minimum
• Inch and metric dual-unit readout for flexible shop use
• Center Lug Flat Back housing for secure mounting to standard indicator holders
• 3/8-inch stem diameter fits common magnetic bases and comparator arms
• CR2032 battery for straightforward field replacement
• 1.50 N measuring force minimizes deflection on delicate workpieces

Compatibility

Designed for use with standard indicator holders, magnetic bases, and comparator stands that accept a 3/8-inch stem diameter and accommodate a Center Lug Flat Back indicator body.

Installation Notes

Mount the indicator using the center lug or flat back attachment point in a rigid holder to prevent measurement error from fixture flex. Ensure the stem is fully seated and the locking collar is snug before zeroing the instrument. Zero the display against a known reference surface before taking measurements. Battery replacement requires a CR2032 cell; follow the manufacturer instructions to avoid damage to the display circuit.