{
  "id": "water-flow-measurement-sensor-yf-s201",
  "name": "Water Flow Measurement Sensor Yf S201",
  "name_zh": "水流量傳感器 YF-S201",
  "mpn": "YF-S201",
  "category": "sensor/flow",
  "summary_zh": "這款傳感器連接供水管線成一直線，並包含一個風車傳感器，以測量流過其中的液體量。內裡集成一個磁性霍爾效應傳感器，每旋轉一圈就會輸出一個電脈衝，測量水流量。霍爾效應傳感器與水管密封，可保持傳感器安全乾燥。",
  "specs": {
    "voltage_v": {
      "typ": 18
    },
    "dimensions_mm": {
      "l": 63.5,
      "w": 35,
      "h": 35
    },
    "weight_g": 60,
    "sensing": {
      "measurement": "flow"
    }
  },
  "pins": [
    {
      "name": "VCC",
      "type": "power",
      "description": "Positive supply, typically 5V"
    },
    {
      "name": "GND",
      "type": "ground"
    },
    {
      "name": "DAT",
      "type": "output",
      "description": "Hall-effect pulse output, 5V TTL square wave, frequency proportional to water flow"
    }
  ],
  "attributes": {
    "輸出": "5V TTL",
    "最大水壓": "2.0 MPa",
    "插頭": "SM 3pin 公頭"
  },
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      "license": "CC-BY-4.0",
      "source": "original"
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      "files": [
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  "product_id": "2099",
  "updated_at": "2026-09-12"
}