PRACTICAL MEASUREMENT REFERENCE
Digital Gauge & Measurement Guide
Understand measurement principles, instrument types, specifications, selection, calibration, and troubleshooting.
Digital Gauge is an independent technical reference for gauges, sensors, and measurement instrumentation, with a focus on helping readers understand how measurements work and how instruments differ.
Start with the fundamentals and working principles, then move into specifications, selection and buying guides, installation, calibration, practical use, and troubleshooting.

Pressure measurements
Learn the principles behind pressure measurement, from gauge, absolute, and differential pressure to common sensing technologies, specifications, selection, calibration, and troubleshooting.
Pressure
Temperature measurements
Explore temperature measurement principles, common sensor technologies, measurement ranges, accuracy, installation considerations, and how to choose an instrument for different applications.
Temperature
Level measurements
Understand how liquids and bulk materials are measured using different level technologies, their working principles, limitations, specifications, and application considerations.
Level
Flow measurements
Learn how flow is measured, how common flow-meter technologies work, and how factors such as fluid properties, range, accuracy, pressure, and installation affect instrument selection.
Flow
Mass flow measurements
Explore mass flow measurement principles, instrument technologies, important specifications, and the differences between measuring mass flow and volumetric flow.
Mass flow
On/Off & Control valves
Learn how on/off and control valves regulate process flow, how common valve and actuator designs work, and what to consider when selecting, sizing, installing, and troubleshooting them.
Valves
Installation guidelines
Find practical guidance for installing and setting up measuring instruments, including connections, positioning, environmental considerations, initial checks, and common installation mistakes.
Guidelines
Software tools
Use practical calculators and reference tools for unit conversion, full-scale error, calibration test points, and other common measurement tasks.
Tools