MSA Sirius General Information

Designed as a versatile PID [PhotoIonization Detector], SIRIUS can be configurated with up to 4 additional sensors. With its real one-hand operation, it is an ideal measuring instrument as well as a personal monitor for a wide range of applications. SIRIUS features outstanding multifunctional capabilities: simultaneously monitors volatile organic compounds [VOCs] in ppm/ppb-range while measuring combustible gases, oxygen-deficient atmospheres, CO and H2S. The new SIRIUS PID Detector combines incredible performance, versatility and ease of use in a single instrument. Robust, durable and lightweight, it can be operated with one hand.

  • Multi-directional bright LEDs for visible alarm
  • Detection of VOC, LEL, Ox, CO & H2S
  • External PID lamp holder for easy access
  • Only three buttons, easy to use
  • Easy-to-read display, all values at one glance
  • Well-balanced for one-hand operation
  • Robust but lightweight
  • Outstanding alarm horn
  • Arson Investigation
  • Confined Space Monitoring
  • Container Leakage Control
  • Decontamination Control
  • Determining the Level of Protective Equipment
  • Fumigation Monitoring
  • Leak Detection
  • Monitoring Work Place Atmosphere
  • Perimeter Monitoring
  • Remediation Monitoring
  • Spill Monitoring
  • Available in three unique packages
  • Heavy duty, durable housing
  • Auto calibration and compatibility with the MSA Galaxy Test System
  • Easy to use, large LCD display
  • Four gas level detection
  • Dust and water resistant
  • TWA and STEL alarms for exposure
  • Lightweight and compact design is easily transported
  • PID lamp holder is mounted on front of unit for easy cleaning

MSA Sirius 4 Gas Detector Specifications:

  • Dimensions: 6.50" L x 3.61" W x 2.60" D
  • PID Bulb Type: 10.6 eV
  • Power Source: Rechargeable lithium-ion or alkaline pack
  • Runtime: 18 hours
  • Display: High-contrast LCD
  • Deluxe Kit: Sirius Multigas Detector, Lithium-ion rechargeable battery, complete calibration kit, 10ft line, 1ft probe, Ret Line, Black boot, Cordura jacket, standard calibration cup, black Pelican® case and user manual
  • Industrial Kit: Sirius Multigas Detector, Lithium-ion rechargeable battery, 10ft line, 1ft probe, Ret line, Black boot, Cordura jacket and user manual
  • Economy Kit: Sirius Multigas Detector, Alkaline battery pack, user manual
  • Warranty: 2 year manufacturer warranty on chassis, electronics and gas sensors, 1 year on PID (including ion chamber)
  • Returns: All returns subject to ActiveForever's return policy and a 15% reprocessing fee. Please call Customer Service for a RMA (Return Merchandise Authorization) Number. Unauthorized returns will not be accepted.
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  • Measuring Ranges

  • Hydrogen Sulfide (H2S): 0-200 ppm, 1 ppm increments
  • Carbon Monoxide (CO): 5-500 ppm range, 5 ppm increments
  • Oxygen (O2): 0-25% of volume, 0.1% increments
  • Combustible Gases (LEL): 0-100% of volume, 1.0% increments
  • Volatile Organic Compounds (VoC): 0-2000 ppm, 1 ppm increments

How to calibrate the MSA Sirius

Sensor Type Calibration Gas Value Low Alarm High Alarm TWA Alarm STEL Alarm
H2S - Hydrogen Sulfide 20ppm 10ppm 15ppm 10ppm 15ppm
CO - Carbon Monoxide 60ppm 25ppm 100ppm 25ppm 100ppm
LEL - Methane Curve 58% LEL 10% LEL 20% LEL N/A N/A
O2 - Oxygen 15% O2 19.5% 23.0% N/A N/A