Could anyone recommend a brand or model for measuring the level of a rain water tank? The tank is 5000L and 2m tall. I don’t mind if its Zigbee, WiFi or has its own controller however I like to have a gauge in HA to stop auto watering if the level is too low. I’ve tried to DIY with an ESP8266 which became a bit over my head. Is there something ‘off the self’ which would work? thanks