The QRAE Plus is a full-featured, compact, one-to-four sensor confined space gas detector. Its features include easy-to-change, externally accessed battery packs (available in both alkaline and rechargeable versions) and water-resistant case design. The rechargeable, Lithium-ion battery pack provides up to 20 hours of continuous operation. The QRAE Plus includes 16,000 datalogging points of storage capacity for download to PC compatible with Windows 98, NT, 2000, and XP.
Key Features
One-to-four plug-in smart sensors: Combustible, Oxygen, Hydrogen Sulfide, Carbon Monoxide
Optional substance-specific toxic sensors: Sulfur Dioxide (SO2), Nitric Oxide (NO), Nitrogen Dioxide (NO2), Chlorine (Cl2), Hydrogen Cyanide (HCN), Ammonia (NH3), Phosphine (PH3)
Rechargeable Lithium-ion battery pack provides up to 20 hours (more than 2 work shifts) of continuous operation
Rugged housing withstands use in harsh environments with a water and dust resistant case and strong protective rubber boot
Highly resistant to radio frequency and other electromagnetic interference
Strong, built-in sample draw pump with optional collapsible sample-probe
Also available in diffusion configuration
One-button calibration with auto-zero capability
Loud audible alarm
Bright visual alarm
Interchangeable Lithium-ion and alkaline battery packs. | 
