A vacuum gauge measures the negative pressure inside your vacuum sealer — it tells you how much air has actually been
removed from the bag. Not all gauges are created equal, and the type installed in your machine directly affects how reliably
you can monitor seal quality.

Key Reading to Know: Standard industrial vacuum sealers operate between -80 kPa and -99 kPa. A reading consistently above-60 kPa (i.e., less vacuum) indicates pump wear, a gasket leak, or a clogged filter — not a “normal” operating state.
Common Buyer Trap: Many budget machines ship with decorative analog dials that are not connected to the actual vacuum
circuit. Test yours: cover the bag mouth without sealing and run a cycle — a real gauge needle should move and hold at peak
vacuum during the dwell time.
YGPACK Standard: All YGPACK chamber vacuum machines use calibrated digital pressure sensors with ±1.5% accuracy,
displayed on the front panel control board. Every machine is factory-tested to confirm gauge accuracy before shipment.