Products & Solutions

Select Category

Fixed Gas Detectors
  • Colorimetric Gas Detector Tubes
  • Environment Monitors
  • Fixed Gas Detectors
  • Flame Detectors
  • Gas Analyzer
  • Personal Gas Detectors
  • Portable Gas Detectors

Gas & Flame Detection, Environment Monitoring

Fixed Gas Detectors >> Open Path Gas Detectors

SafEye Series Quasar 900 Open Path Gas Detector

The New SafEye Quasar 900 provides continuous monitoring for combustible hydrocarbon gases. It employs “spectral fingerprint” analysis of the atmosphere using the Differential Optical Absorption Spectroscopy (DOAS) technique.


The Quasar 900 consists of a Xenon Flash infrared transmitter and infrared receiver, separated over a line of sight from 23 ft (7m) up to 660 ft (200m) in extremely harsh environments where dust, fog, rain, snow or vibration can cause a high reduction of signal.
The Quasar 900 transmitter and receiver are both housed in a rugged, stainless steel, ATEX and IECEx approved enclosure.It includes heated windows to eliminate condensation and icing, HART capability for digital communication and is designed to meet SIL2 per IEC61508.


The hand-held communication unit can be connected in-situ via the intrinsically safe approved data port for prognostic and diagnostic maintenance


  • Misalignment Tolerance of ±0.5°
  • IP66/68 Stainless Steel Housing
  • SIL2 approved to IEC61503
  • HART protocol for maintenance and asset management
  • Response Time: 3 sec
  • Spectral Response: 2.0 – 3.0 mm
  • Sensitivity Range: 0 – 5 LEL.m
  • Accuracy: +4% of Full Scale  or  +7.5% of Reading
  • Minimum Detectable Level: 0.15 LEL.m

Temperature Range: -55oC to 65oC