Grael PSG


Based on the flagship Grael amplifier, the Grael PSG has a channel subset dedicated for Sleep studies. A true-HD PSG amplifier with channels as specified for the gold standard AASM Type 1 studies.

Product Features


High Definition Full PSG

  • Full PSG in High Definition
  • 24-bit amplifier – A new standard for PSG
  • DC-coupled inputs – See what’s really happening
  • Differential ECG and EMG provide unparalleled signal quality
  • Exceptional noise and artefact rejection
  • Exceeds all AASM Digital Specifications**

One box, one cable amplifier

  • All connections are integrated
  • A single IP connection to the Grael provides both power and data transmission
  • Built-in light sensor*
  • Sleep-optimised Oximeter*
  • Integrated RIP technology*
  • New high-sensitivity snore microphone*
  • Calibration-free position sensor*

Improved efficiency

  • One-touch quick disconnect
  • Lanyard for easy carrying when disconnected
  • Light-up touch-proof connectors allows convenient bedside impedance checking
  • Touch-proof connectors are ideally spaced for easy access
  • Labeled to current AASM guidelines**
  • Grael cradle can be desk, cart or wall mounted to suit any environment




  • PSG

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