Product Description

Comfortable, high-resolution wrist oximeter for sleep and respiratory assessment

The Checkme O2 MAX is a lightweight, wrist-worn oximeter designed for comfortable, extended monitoring of oxygen saturation, pulse rate and motion. It features a unique ring-style sensor, offering superior patient comfort and improved compliance for overnight use. With four-night memory capacity, high SpO₂ resolution (stored at 0.5 Hz), and up to 72 hours of battery life, the device is well-suited to both clinical and home-based screening.

Intended for sleep apnoea screening, home oxygen therapy assessments, and non-invasive ventilation (NIV) monitoring, the Checkme O2 MAX provides accurate and accessible data collection in a patient-friendly form factor.

N.B. This is not an actigraph. SpO2 detection technologies take too much battery to be used as long as an actigraph needs to.

Key Features

• Wristwatch-style oximeter with intuitive design and lightweight form
• High-resolution SpO₂, pulse rate and motion storage at 0.5 Hz
• Motion recording trace facilitates wake/sleep judgement
• Four-night memory capacity for extended monitoring, each of ten hours maximum recording
• 72-hour battery life on a single charge
• Ring sensor for superior comfort and patient compliance
• Fast USB data transfer – 8 hours of data downloads in ~10 seconds
• Compatible with Visi-Download software using the supplied interface cable
• Internal rechargeable battery with ~3-year lifespan

Software Compatibility

The Checkme O2 MAX integrates with Visi-Download software for fast data access and review. Using the included USB interface cable, full overnight recordings can be downloaded in seconds, supporting quick turnaround for reporting and analysis.

Benefits

• Enhances patient comfort with non-intrusive ring sensor
• Improves study compliance and data reliability
• Ideal for multi-night monitoring and follow-up screening
• Lightweight and wearable – perfect for at-home deployment
• Fast data access streamlines clinician workflow
• Multiple probe options available for different patient groups

Typical Applications

• Overnight sleep apnoea screening
• Long-term oxygen therapy (LTOT) assessment
• Monitoring during non-invasive ventilation (NIV)
• Remote and home-based respiratory evaluation

For Sleep Technicians

The Checkme O2 MAX is easy to deploy for home studies, offering reliable overnight recordings with minimal setup. The soft, ring-style sensor ensures comfort throughout the night and reduces dislodgement. With rapid data download via USB, analysis and reporting can be completed efficiently using Visi-Download.

Stowood have created a ‘hook up’ video which you can share with patients using a link or QR code for easy linking from a patient information leaflet or similar.

For Sleep Consultants

Consultants benefit from high-resolution SpO₂ data that supports the diagnosis and management of respiratory conditions. The multiple nights of recording and improved patient compliance make the Checkme O2 MAX a reliable tool for screening and follow-up, particularly in patients using oxygen therapy or NIV.

For Researchers into Sleep

The Checkme O2 MAX enables multi-night monitoring in natural settings, providing high-quality, high-frequency data ideal for longitudinal or behavioural studies. Fast download and compatibility with research workflows make it a practical tool for data collection across diverse populations.

Accessories & Probe Options

• Included: Ring-style sensor and USB interface cable
• Optional sensors and accessories:
  • Reusable adult soft tip probe
  • Reusable neonatal soft tip probe
  • Carry case for safer travels
  • Single port charging plug
  • Multiple port charging plug
• Spare parts available: Strap, metal clip, charging/download cable

Warranty

• Main unit: 2-year manufacturer’s defect warranty
• Probes and accessories: 6 months