The DPI series electronic pressure measuring devices are engineered for building automation in HVAC/R industry. The most technologically advanced and versatile electronic differential pressure switches on the market, combining up to two relay outputs and 0–10 V output options. The DPI includes the following field select able features: Configurable switching point: Open on rise or fall in pressure Hysteresis of setpoint Measurement units (Pa, kPa, mmWC, inWC, mbar) Measurement range (4 ranges per model) Output signal (0−10 V, NO/NC) Span and zero point calibration For more information, please visit our website. You can contact Ms.Toh for any questions via the phone number 012-295 1393 or email to [email protected]