Spi 20-189-7 Remote Display Digital Probe

Product Description

The SPI 20-189-7 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 tight-tolerance inspection tasks where reliable, repeatable readings are critical. The probe transmits measurement data to a separate remote display unit, keeping the readout visible and accessible without obstructing the measurement zone. It is typically installed and used by machinists, quality control technicians, and metrologists working in manufacturing, tool and die, and precision inspection environments.

This probe is suited for use on surface plates, fixture setups, CMM-style manual gauging stations, and production-line inspection rigs. The compact probe body allows placement in confined measurement positions while the remote display maintains clear readout visibility. Its digital output eliminates parallax error common with analog indicators. Applications include part inspection, machine setup verification, and comparative gauging in both shop-floor and laboratory settings.

Key Features

• Accuracy of 0.0003 inches (0.008 mm) for high-precision dimensional measurement
• Remote display design separates the probe body from the readout for improved ergonomics and visibility
• Digital output eliminates parallax error and supports consistent readings
• Compact probe dimensions of 2 inches length by 1.5 inches width for placement in tight setups
• Lightweight at 0.4 pounds for easy mounting in fixtures or gauge stands

Compatibility

Designed for use with compatible SPI remote display units in precision gauging and dimensional inspection setups. Consult SPI documentation to confirm display unit compatibility before installation.

Installation Notes

Installation is typically performed by a machinist or metrology technician. Ensure the probe is securely mounted in a rigid fixture or gauge stand to prevent measurement error caused by probe movement or vibration. Zero and calibrate the system using a known reference standard before taking production measurements. Follow the display unit manufacturer wiring and connection guidelines when setting up the remote display interface.