{
  "id": "meters:oscilloscope-line-adapter",
  "collection": "meters",
  "slug": "oscilloscope-line-adapter",
  "name": "Oscilloscope line adapter",
  "summary": "A protected coupling that lets an oscilloscope show the actual mains waveform and its harmonic content, replacing a proprietary dirty-electricity index with a measurable spectrum.",
  "status": "verified",
  "lastVerified": "2026-08-12",
  "data": {
    "aliases": [
      "line probe",
      "mains waveform adapter"
    ],
    "measures": [
      "electric-field-strength",
      "frequency"
    ],
    "bandCovered": {
      "minHz": 50,
      "maxHz": 10000000,
      "label": "conducted, adapter dependent"
    },
    "priceBandUsd": [
      100,
      1000
    ],
    "detects": [
      "Actual waveform distortion, transients and carrier frequencies on the circuit",
      "Which harmonic order a filter is or is not removing"
    ],
    "cannotDetect": [
      "Radiated fields",
      "Exposure, in the sense of any exposure standard"
    ],
    "buyingCriteria": [
      "Galvanic isolation and correct voltage rating for the mains supply",
      "Documented frequency response"
    ],
    "related": [
      "meters:dirty-electricity-meter"
    ]
  },
  "sources": [
    {
      "id": "sbm-2024",
      "title": "Building Biology Evaluation Guidelines for Sleeping Areas (SBM-2024)",
      "publisher": "Institut für Baubiologie + Nachhaltigkeit (IBN)",
      "url": "https://buildingbiology.com/site/downloads/SBM-2024_EVALUATION_GUIDELINES_EN.pdf",
      "year": 2024,
      "kind": "ngo",
      "retrieved": "2026-08-12"
    }
  ],
  "links": {
    "self": "https://emfbase.com/api/meters/oscilloscope-line-adapter",
    "html": "https://emfbase.com/meters/oscilloscope-line-adapter",
    "markdown": "https://emfbase.com/meters/oscilloscope-line-adapter.md",
    "collection": "https://emfbase.com/api/meters"
  }
}