Torque Gauges

Select a gauge with a measurement range that covers the lowest and highest torques you expect, choose the appropriate unit (Nm, lb-ft, in-lb), prefer a resolution at least 1%–2% of the maximum value, and pick a form factor (handheld digital, dial, or bench) suited to how you'll use it

For general maintenance and assembly, 1%–3% accuracy is typical; hobby or light work can accept lower accuracy while professional calibration or critical torque should use 1% or better; resolution should be fine enough to read meaningful steps (e.g., 0.1 Nm or 0.01 lb-ft depending on the scale)

Digital gauges generally provide easier reading, selectable units, peak/trace modes, and data hold/recording features, while mechanical dial gauges are simpler, require no batteries, and can be more durable in harsh environments; choose based on required features and working conditions

Calibration frequency depends on usage intensity and requirements but commonly is annual for routine use or more frequently for critical applications; calibration is performed by comparing the gauge against a traceable standard (calibration service or lab) and adjusting or documenting deviations

For workshops, look for bench-mount compatibility, higher capacity ranges, and data output (USB/serial); for field use prioritize portability, battery life, impact resistance, and easy-to-read displays or backlighting

Avoid drops and shock, store in a protective case at stable temperatures, remove batteries for long-term storage, keep the sensor and connections clean, and follow the manufacturer's service and calibration schedule

Prices vary by type and features: basic mechanical gauges and entry-level digital models are commonly under $100, while higher-accuracy, higher-capacity, or data-capable instruments cost more; factors affecting price include accuracy, range, build quality, and electronic features