{
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        },
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      "status": "unknown",
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      "updatedAt": "2026-05-04"
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      "updatedAt": "2026-05-04"
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      "updatedAt": "2026-05-04"
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      "updatedAt": "2026-05-04"
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      "updatedAt": "2026-05-04"
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      "updatedAt": "2026-05-04"
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      "updatedAt": "2026-05-04"
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      "updatedAt": "2026-05-04"
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      "sources": [
        {
          "url": "https://www.compumedics.com.au/en/products/grael-4k-psg-eeg/",
          "label": "Compumedics — Grael 4K PSG:EEG product page"
        },
        {
          "url": "https://www.neurospec.com/products/grael-4k-psg-eeg",
          "label": "NEUROSPEC — Grael 4K PSG:EEG distributor"
        }
      ],
      "updatedAt": "2026-05-04"
    },
    "warranty": {
      "status": "unknown",
      "updatedAt": "2026-05-04"
    },
    "returnPolicyDays": {
      "status": "unknown",
      "updatedAt": "2026-05-04"
    }
  },
  "editorial": {
    "pros": [
      "4 kHz / 24-bit clinical-grade EEG + PSG",
      "FDA / CE Class IIa cleared",
      "Profusion EEG/Sleep software ecosystem"
    ],
    "cons": [
      "Wet-gel cap setup",
      "Older Windows-only software stack"
    ],
    "bestFor": [],
    "notFor": [],
    "comparableDevices": [
      "natus-nicolet-eeg",
      "cadwell-easy-iii"
    ]
  },
  "provenance": {
    "sources": [
      {
        "label": "Compumedics Neuroscan — Grael 4K product page",
        "url": "https://compumedicsneuroscan.com/product/grael-4k-psg-eeg-erp-amplifier/"
      },
      {
        "label": "Compumedics — Grael 4K PSG:EEG",
        "url": "https://www.compumedics.com.au/en/products/grael-4k-psg-eeg/"
      },
      {
        "label": "NEUROSPEC — Grael 4K distributor page",
        "url": "https://www.neurospec.com/products/grael-4k-psg-eeg"
      }
    ],
    "lastReviewedAt": "2026-05-07"
  }
}