Omega pH probeOmega’s pH and ORP differential probes are designed to stay in service and provide accurate measurements under conditions that often render conventional pH probes inoperable. These probes feature integral two-wire 4-20 mA transmitter, a built-in pre-amp that supports up to 914 m (3,000 ft) sensor-to-analyzer distance, 4.6 m (15 ft) standard cable length, and automatic temperature compensation on pH versions. Applications include: process control, industrial and municipal water treatment, food and beverage, chemical processing, and mining and power generation. –