Rugged enough to be used in the most demanding situations. The Onyx II has the US Army and US Air Force aeromedical certification for use in helicopters.

Features;

• Easy to read LED display with pulse quality indicator
• Proven accuracy and reliability
• Simple to use, automatic on/off operation
• Built in USA with lead-free, latex-free construction
• Cost-effective - no additional sensors required
• Small and light enough to carry at all times
• Efficient power consumption means up to 10,000 spot checks or 63 hours of continuous use from 2 x AAA batteries (included)
• Suits both Adults and Paediatrics with 8mm - 25.4mm finger thickness (infants and neonates require a Nonin hand-held with interchangeable sensors)
• 4 year warranty
• Made in the USA