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January 27, 2023
7 MIN READ
Typically, gauges operating in rough to medium vacuum have higher accuracy than those operating in medium to ultra-high vacuum. Direct gauges are more accurate than indirect. Direct gauges usually have an accuracy of between 0.2 to 2% with their accuracy decreasing as the pressure drops. Indirect gauges generally vary between 10% and 50%, depending on the gauge technology, but have consistent accuracy across their ranges.
Depending on what you are intending to use the gauge for, you need to choose the right gauge to cover your operating pressure and desired accuracy.
Reference: Explore the Leybold range of precision vacuum gauges and controllers on our product page.