As with many chemical sensors, the pH and ORP probes gradually lose their ... but [Stephen] has found pretty decent low-cost alternatives on AliExpress that should be fine for a home setup.

Called the Nectar Monitor, this pH meter is a more modern take on what is currently offered in this space. Open source and based on the ESP32, it’s accessible to most people with a soldering ...

The new Teledyne Valeport pH sensor, developed in collaboration with ANB Sensors, introduces a self-calibrating solution for ...