The HI-72911B is a titanium body, polymer filled, double reference junction pH electrode with a BNC + phono connector. This flat tip sensing portion of this electrode is made with general purpose glass. The HI-72911B has a PTFE type junction along with a built-in temperature sensor. This design consideration is ideal for measuring the pH in boilers and cooling towers. The HI-72911B is designed for use with Hanna’s HI-98191 pH meter.

• Unbreakable titanium body
• Built-in temperature sensor for automatic temperature compensation
• Large annular PTFE junction with increased surface area for the reference cell