si792x P, pH/ORP Transmitter, Class I Division 1, ATEX Zone 1, with standard HART communication

Hach GLI differential sensors offer greater reliability, with the longest duty cycle available. The working life of the sensor is extended to three times that of conventional 2-electrode combination pH sensor through the use of a unique, replaceable salt-bridge. The Hach si792x P 2-wire transmitter also offers sensor diagnostics such as asymmetry potential, slope, response time, cable integrity, glass, and reference impedance. HART communication for Class I, Division 2 or Class I, Division 1 applications.

• Large, clear display
• Icon-based messages for system status
• System alarm indicated by red LED
• Unsurpassed measurement accuracy