SpO2 Tester

vPad-O2 is the next generation SpO2 tester. Built on the vPad platform, vPad-O2 is user programmable so new sensors can easily be added in the field without needing to send the unit back to a service centre for upgrading. Being part of the vPad-A1 family, vPad-O2 can be upgraded to include a Multi-Parameter Patient Simulator and / or a NIBP Simulator.

  • Compatible with all major industry manufacturers
  • Field editable R Curves allows for easy set up of new oximeters
  • Unlimited preset patient simulations
  • Five automated test sequences for determining oximeter alarm response time
  • Four preset signal artifact simulations
  • Easy to navigate
  • Control via Bluetooth or USB
  • Auto Settings
  • Auto Sequences
  • Test reports
  • Field upgradeable

vPad-O2™ Performance Specifications

Saturation (SpO₂)
Range: 30% to 100%
Increments: 1%
Presets: 6, user definable
Range of adjustment and presets may vary according to pulse oximeter
SpO₂ Accuracy
Saturation within DUT specified range: ±1 count + specified accuracy of the DUT
Heart Rate
Range: 20 to 300 BPM
Increments: 1 BPM
Presets: 6, user definable
Accuracy: ± 0.25 BPM (sync mode); otherwise, ±1 BPM
Pulse Amplitude
Range: 0 to 100%
Increments: 1% steps.
Presets: 6, user definable
Accuracy: ± 1%
Signal Artifact
Four preset simulations:
  • Movement
  • Tapping (Spike artifact)
  • Shivering (Tremor artifact)
  • Shake Table (2.5Hz Sinewave)
Auto Presets:
Unlimited preset patient simulations


Default Auto Presets:
  • Normal Adult
  • Hypoxia
  • Movement Artifact
  • Tachycardia
  • Bardycardia
  • Neonate
  • Low Perfusion
  • No perfusion
  • Tremor (Shivering Artifact)


Alarm Tests:
Automated test sequences for determining oximeter alarm response time to:
  • Low Saturation
  • Low Heart Rate
  • High Heart Rate
  • Low Perfusion
  • Signal Artifact
Five defaults, plus unlimited programmable alarm sequences
Communication / User Interface
via vPad-A1 Base Unit:

Android 5″ tablet:

  • Touchscreen User Interface
  • Wired (USB) or Bluetooth mode
  • WiFi
  • 16 GB memory

Dual XBUS for Datrend test automation

Power Supply
via vPad-A1 Base Unit:
  • External AC adapter
  • Internal rechargeable Li-Ion batteries (for 10 hrs of simulation with full charge)
98mm x 208mm x 30mm (3.85” x 8.2” x 1.18”) A1 Base
90mm x 160mm x 24mm (3.54” x 6.3” x 0.95”) SpO₂ Probe
440g (0.96lb) A1 base
122g (0.27lb) SpO₂ Probe
15°C to 40°C, 10% to 90% RH, Indoor Use Only,
Category II

All specifications subject to change without notice.

All Datrend vPad Products are designed and manufactured under an ISO13485 registered Quality System and carry a one (1) year warranty from the date of original purchase.

This warranty will automatically be extended to two (2) years from the date of original purchase, provided that calibration is performed on an annual basis by de Smit Medical Systems Ltd, exclusive UK Datrend Authorised Service Centre.