The Milwaukee MI60P is the replacement electrode for 4-in-1 MW803 and MW804 pH/Conductivity/TDS/Temperature MAX Testers (sold separately).The MI60P measures pH, EC, TDS and temperature and easily slides into the tester fitting then screws into the meter body for secure installation.
Milwaukee Instruments handheld testers, portable meters and stationary monitors-controllers are warranted for a period of 2 years and bench meters for 3 years. The PH600 pH Pen and versions of it have a 1 year warranty. Replaceable probes are warranted for a period of 6 months.