This level switch set can be used to add to a Wi-Fi pool measuring module or to Ferrosalt duo water treatment devices.
The level controller is a 50cm long, 2cm diameter tube with a protective resin inside. This allows it to be used with liquid pH+, pH, and liquid chlorine.
The level switch has a two-wire connection. For Wi-Fi pool products, a flow switch with a waterproof Higo connection is used.