Ultra-Fast, Ultra-Easy, Ultra- Powerful Ultrameter IIs save both
time and money. Measure for measure, Ultrameter IIs give you a better return on
your investment than any other handheld instrument. The ULTRAMETER II™ 6PFCE
measures Conductivity, Resistivity, TDS, ORP, Fee Chlorine, pH, and temperature
while ULTRAMETER II™ 4PII measures Conductivity, Resistivity, TDS, and
Temperature.