Ashcroft® Pressure Gauge Type 1490

• 2.5" and 3.5" dial size
• Glass-filled polysulfone case material, won't rust or dent
• Beryllium copper diaphragm
• Brass socket
• Wetted materials of beryllium copper, brass, polysulfone, and RTV silicone
• Exclusive autoclavable feature

The Ashcroft® Type 1490 low pressure diaphragm gauge is designed to measure pressure from 10 in. H2O to 15 psi, both positive and negative pressures. This gauge uses a very sensitive diaphragm capsule to measure low pressure and vacuum. The gauge is specifically designed for use whenever the pressure medium is a gas that is not corrosive to beryllium copper, brass, polysulfone and RTV silicone. The polysufone case is suitable for intermittent or continuous service on natural gas provided a .013" throttle plug is installed in the socket.