YSI* 63 pH Instrument

. Memory for storage of 50 readings
. Simultaneous readings of pH, conductivity, salinity and temperature
. User replaceable pH electrode
. Weighted probe sinks easily
. Cables come in four lengths: 10, 25, 50 or 100 ft (3, 7.6, 15.2, 30.5m)
. IP-65 rated-�fully submersible up to 100 feet

The rugged pH electrode has an industry-leading one-year warranty. Tough, watertight case withstands the rigors of field work. Built-in storage chamber protects the probe when not in use. A bright, backlit display is easy to read.