INFORMATION - Improved optics: enables low-level gas detection in seconds - Instant alarm bar: Instant indication that gas is present - Built-in data logging: Micro SD card can record up to 5 years of data - Real-time clock with date stamp: Accurate recording of data - SW selectable calibration curves: All gas calibrations are user selectable (no gas release required) system is flexible to meet gas detection requirements - Increased battery life: Up to 12 hours of continuous monitoring - Built-in STEL: The unit continuously calculates a rolling 15 minute STEL- t - 2 alarm levels: User selectable alarm levels - Flushed cartridge: Ensures that the colorimetric medium is not contaminated by ambient gas