Sinric Pro Water Tank (Water Level Monitor) using ultrasonic sensor : https://help.sinric.pro/pages/tutorials/custom-device-types/ultrasonic-sensor/HC-SR04.html

sinricpro-water-sensor-device-template-full.json

{
  "name": "Water Level Indicator",
  "description": "Water Level Indicator",
  "deviceTypeId": "621b9648f728ec974aac62f2",
  "capabilities": [
    {
      "id": "5ff0b45f994fd31b7d5e89c2",
      "range": {
        "instanceId": "rangeInstance1",
        "locale": "en-US",
        "rangeName": "Water Level",
        "minimumValue": 1,
        "maximumValue": 100,
        "precision": 1,
        "unitOfMeasure": "5ffbeefbfaa11451974c6bbd",
        "presets": [],
        "nonControllable": true
      }
    },
    {
      "id": "62a707bd9e2f39090569e2d3"
    },
    {
      "id": "5ff0b45f994fd31b7d5e89c2",
      "range": {
        "instanceId": "rangeInstance2",
        "locale": "en-US",
        "rangeName": "Empty Tank Height",
        "minimumValue": 1,
        "maximumValue": 200,
        "precision": 1,
        "unitOfMeasure": "600e7937a7a09c3f3230f8ed",
        "presets": [],
        "nonControllable": false
      }
    },
    {
      "id": "5ff0b45f994fd31b7d5e89c2",
      "range": {
        "instanceId": "rangeInstance3",
        "locale": "en-US",
        "rangeName": "Full Tank Height",
        "minimumValue": 1,
        "maximumValue": 200,
        "precision": 1,
        "unitOfMeasure": "600e7937a7a09c3f3230f8ed",
        "presets": [],
        "nonControllable": false
      }
    }
  ]
}