Spi CMS160809210 Electronic Drop Indicator 2in Digital

Product Description

The SPI CMS160809210 is a digital electronic drop indicator designed for precise dimensional measurement in manufacturing, machining, and metrology applications. It features a digital display with a resolution of 0.000050 inches (0.0010 mm) and an accuracy of 0.000250 inches (0.0060 mm), making it suitable for quality control, surface measurement, and comparative gauging tasks. The flat lug back mount allows secure attachment to magnetic bases, indicator holders, and standard gauging fixtures. The unit measures in both inch and metric modes and accepts a CR2032 battery. Machinists, tool-and-die technicians, and quality control inspectors are the primary users.

This drop indicator is used in precision measurement environments such as machine shops, inspection departments, and production floors. It is appropriate for residential or commercial maintenance work requiring tight tolerance verification, fixture setup, runout checking, and surface plate inspection. The 3/8-inch stem diameter fits standard indicator holders and articulating arms commonly found in shop and field metrology setups. Both inch and metric measurement modes make it adaptable to mixed-unit work environments.

Key Features

• Digital display with 0.000050-inch (0.0010 mm) resolution for fine measurement readout
• Accuracy of 0.000250 inches (0.0060 mm) across the full measuring range
• Measurement range: 0.0000 to 2.0000 inches (0.00 to 50.00 mm)
• Dual-unit readout supports both inch and metric measurement modes
• Flat lug back design compatible with standard magnetic bases and indicator holders
• 3/8-inch stem diameter fits widely available gauging fixtures and articulating arms
• Powered by a CR2032 battery for easy field replacement

Compatibility

Designed as an OEM-style drop indicator compatible with standard 3/8-inch stem indicator holders, magnetic bases, and dial indicator fixtures commonly used in precision measurement and machine shop applications.

Installation Notes

Installation is performed by machinists, metrologists, or quality control technicians using standard indicator holders and magnetic bases. Ensure the stem is fully seated and the lug back is securely clamped before taking measurements. Zero the indicator at the reference position before beginning a measurement sequence. Do not exceed the rated measuring force of 1.50 N to avoid damage to the contact point or internal mechanism.