I’ve been using a Tuya zigbee one.
The sensor is a plastic block with a mounting screw hole, and two metal contacts on the base.
Water hits the contacts, it transmits an alert.
Sensor is on a wire, attached to the transceiver and battery, so it can be put out of harms way.
Fired straight up in standard ZHA under HomeAssistant.
I’ve been using a Tuya zigbee one.
The sensor is a plastic block with a mounting screw hole, and two metal contacts on the base.
Water hits the contacts, it transmits an alert.
Sensor is on a wire, attached to the transceiver and battery, so it can be put out of harms way.
Fired straight up in standard ZHA under HomeAssistant.
It cost about £14