The MODEL 1000RS Portable Trace Oxygen Analyzer is the undisputed leader when measuring ppm levels of oxygen. It is designed for the field and is truly portable.  At just 5 lbs (2.3 kg), the MODEL 1000RS is the smallest, lightest, fastest, and most accurate portable unit in the industry. Patented innovations and key features are packed into a compact, rugged design and produce an incredibly fast and reliable O₂ measurement. The datalogging feature serves as a critical tool when searching for difficult intermittent leaks in the field.  The unit’s long-life rechargeable battery proves useful when you need days of unattended operation for tracking sporadic oxygen spikes caused from leaks.