Spi 20-188-9 Remote Display Digital Probe

Product Description

The SPI 20-188-9 is a remote display digital probe designed for high-precision dimensional measurement in industrial and metrology applications. It delivers an accuracy of 0.0003 inches (0.008 mm), making it suitable for close-tolerance inspection work where conventional indicators fall short. The probe transmits measurement data to a remote display unit, keeping the readout clear of the workpiece and reducing operator error during gauging setups. Machinists, quality control technicians, and tool room professionals are the primary installers and users of this instrument.

The 20-188-9 is well suited for use on surface plates, CMM fixtures, comparator stands, and precision gauging stations in machine shops, manufacturing facilities, and inspection labs. Its remote display configuration makes it a practical choice in tight-clearance setups where a traditional dial indicator or integrated display would be difficult to read. The compact probe body and standard probe geometry allow integration into custom fixturing and automated gauging applications.

Key Features

• Accuracy of 0.0003 inches (0.008 mm) for high-precision dimensional gauging
• Remote display design separates readout from probe for clear sightlines in confined setups
• Digital output eliminates parallax error common with analog indicators
• Compact probe body at 2 inches length and 1.5 inches width for tight-clearance applications
• Lightweight at 0.3 pounds for use in sensitive fixtures without adding significant load

Compatibility

Designed as an OEM-style remote display digital probe for use with compatible remote readout units and precision gauging fixtures in industrial metrology applications.

Installation Notes

Installation and setup should be performed by a qualified machinist or metrology technician familiar with precision gauging equipment. Ensure the probe is mounted securely in the fixture with proper contact force to avoid measurement drift or probe damage. Zero the instrument at a known reference surface before taking measurements. Do not overtighten clamping hardware, as excessive force on the probe body can affect calibration and mechanical integrity.