Guardian 500 Airflow Monitor with Epoxy-Coated Steel Casing

Guardian 500 with casing
  • Guardian 500 with casing
Catalog #: 3944700
Price: $1,430.00


  • Applicable Products: Protector Demonstration Hoods, Protector Work Stations without Blower, Protector XVS Ventilation Stations, XPert Balance Enclosures


  • Estimated Shipping Weight: 10.0 lbs
  • Estimated Shipping Weight metric: 4.5 kg
  • Electrical: 115 volts, 50/60 Hz

Mount atop the enclosure. Includes glacer white epoxy-coated steel casing.

Guardian 500 Airflow Monitor senses and alerts the operator to low airflow conditions. Includes a face plate with circuit board, electrical power pack, vinyl tubing and airflow tube adapter. From the monitor's face plate, the user can easily select and calibrate a set point between 30 and 250 fpm using a velocity meter and a screwdriver. A green LED glows to indicate "safe" when airflow is greater than the low set point. A red LED flashes to indicate "low when airflow is below the low set point. An amber LED flashes when the sash is raised above the maximum safe working opening height. An audible alarm sounds (and can be muted) when under "low" and "sash high" condition. Includes night setback, external alarm and alarm mute functions.

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Literature & Resources

  • Brochures

    • Protector Storage Cabinets, Base Stands & Fume Hood Accessories Catalog

      Catalog provides ordering information on Protector Acid, Solvent, Standard and Vacuum Pump Storage Cabinets; SpillStopper and Flat Work Surfaces; and fume hood accessories including service fixture kits, electrical receptacle kits, airflow monitors, ceiling enclosures, distillation grids and Snuffer Fire Extinguishers. This is Labconco literature code 2-61.

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  • User's Manuals

    • Guardian 500 Airflow Monitor Installation Guide

      Outlines installation and calibration procedures for Guardian 500 Airflow Monitor models 3944700 and 3944701.

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    • Guardian 500 Airflow Monitor Manual

      For catalog numbers: 3944700, 3944701, 9743213 and 9743214

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    • Guardian 500 Digital Airflow Monitor Installation Guide

      Outlines installation and calibration procedures for Guardian 1000 Digital Airflow Monitor models 9743211 and 9743212.

      View Files

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