Davey - pH Probe for ProMatic Lifeguard Controller - 16166SP

Davey – pH Probe for ProMatic Lifeguard Controller

This is the genuine Davey replacement pH probe (part number 16166SP) designed for the Davey ProMatic Lifeguard pool chemistry controller. It continuously measures the pH level of your pool water, allowing the Lifeguard system to automatically dose acid and keep water chemistry within the correct range. Maintaining accurate pH is essential — if levels drift too high or too low, chlorine’s effectiveness is significantly reduced.

Kompatibilität

This pH probe is a direct replacement for the Davey ProMatic Lifeguard controller, covering models DPLG-15E, DPLG-25E, DPLG-25EL, DPLG-35E, and DPLG-15EL (model code DPLGEU for the European market). It connects to the Lifeguard controller via a locking BNC connector and mounts into the dedicated pH port on the probe and injection point housing. If you are unsure which Lifeguard variant you have, check the model label on your controller before ordering.

When to Replace

pH probes are sacrificial components that naturally deteriorate with age and pool chemical exposure. As the probe ages, readings become increasingly unreliable and more frequent recalibration is required — this is the key sign that replacement is due. Replacement is also necessary if the probe tip is physically damaged. Davey recommends checking probe calibration every three months; upon fitting a new probe, a full recalibration must be carried out via the Lifeguard control panel.

Warum Echtheit zählt

Using a genuine Davey spare ensures the probe is matched to the signal specifications and BNC connector format of the Lifeguard controller, avoiding false readings that could cause incorrect acid dosing. A genuine part also protects any remaining warranty on your Lifeguard system and guarantees the plug-and-play fit described in Davey’s official installation instructions.