These probes are especially designed for the Apex controllers. We also supply the calibrations fluids for each type of probe. The handy magnetic probe holder holds up to four probes in place. Lab Grade electrodes last longer and are more accurate.
Neptune SystemsConductivity Probe Lab Grade
Conductivity probe for monitoring the salt / salinity in the water.
Neptune SystemsMagnetic Probe Rack
This probe rack has a strong magnet and is made of durable plastic. Suitable for 4 probes max.
Neptune SystemsConductivity 53ms Calibration Fluid
Calibration fluid for use with the conductivity probe and PM2 for salt water monitoring.
Neptune Systems7.00 pH Calibration FluidFluid
7.00 pH calibration fluid for use with pH probes of Neptune Systems.
Neptune SystemsORP/REDOX Probe Lab Grade
Accurate and durable ORP/Redox probe, 'Lab Grade' for monitoring the Redox / ORP values in the water.
Neptune SystemsDissolved Oxygen Probe
Measures dissolved oxygen in the water. Use with Dissolved Oxygen Module – PM3.
Neptune SystemsTemperature Probe
Temperature probe to be used with your APEX computer, a PM1 module or for use with the PM2 and PM3 modules for temperature compensation.
Neptune Systems10.00 pH Calibration Fluid
10.00 pH calibration fluid for use with pH probes of Neptune Systems.
Neptune SystemsConductivity 447 Calibration Fluid
Calibration fluid for use with the conductivity probe and PM2 for Ro/Di (osmose) water monitoring.
Neptune Systems4.00 pH Calibration Fluid
4.00 pH calibration fluid for use with pH probes of Neptune Systems.