Powered by either 90 to 240 VAC or 9 VDC battery, these Vacuum Research Differential Pressure instruments are compact instruments with pure silicon diaphragms that can measure air or gas pressure difference from atmosphere. A linear output signal suitable for computer, PLC, or security systems is built into all
models. Response time is less than 400 milliseconds for full scale and instruments are available with either 1/8 inch NPT male thread or 1/2 inch O.D. tube stem. These instruments offer the precision and high resolution of digital electronics at very competitive prices.