pH Probe Double Junction letting you go longer between calibrations, and having to purchase and replace probes less frequently.
The Double Junction isolates the reference gel and probe from proteins and other organics that may otherwise precipitate and clog, shortening the lifespan of the probe.
Neptune's Double Junction pH Probe is compatible with any monitor or controller with a BNC style connection and have two chambers that keeps any contaminants that could possibly react with and clog the actual sensing portion of the probe.
Note: We suggest calibrating probes every 60-90 days for reliable and stable readings. Calibration fluid sold separately.