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Thông tin sản phẩm : http://www.pci-instruments.com/product/304_pressure-gauge-fitted-with-min-_-max-drag-pointer.html

Product Specifications

• Min and Max version available

The TP300 series pressure gauge can come fitted with a min / max drag pointer. The red drag pointer follows the regular pointer on increasing pressure and remains at the highest point until it is reset by a key on the front of the window. The white drag pointer indicates the lowest pressure or vacuum. Drag pointers are best suited for dry gauges.

Thiết bị đo áp suất của PCI Instrument