The Accutire MS-4021B is part of the Tire pressure ... Accuracy is based on a comparison of each model against a known calibrated master gauge at various pressures, and at cold, room, and hot ...

The Accutire MS-4400B is part of the Tire pressure ... Accuracy is based on a comparison of each model against a known calibrated master gauge at various pressures, and at cold, room, and hot ...