Alnor

Alnor by TSI is a trusted name in airflow measurement for testing, adjusting, and balancing in life science facilities. From capture hoods and micromanometers to rotating vane and thermal anemometers, Alnor instruments help commissioning agents, certifiers, and facility teams quantify supply/return airflow, verify pressurization strategies, and validate controlled environments. Rugged construction, straightforward user interfaces, and dependable accuracy support field work in labs, pharmacies, and healthcare suites. With service and calibration options, Alnor provides a complete toolkit to help you document performance and streamline reporting.

Products

Alnor ABT Balometer Capture Hoods

Measure supply and return flows quickly with Alnor ABT Balometer capture hoods for life science HVAC balancing.

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Alnor Capture Hoods

Direct airflow readings at diffusers and grilles with Alnor capture hoods for efficient balancing and documentation.

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Alnor LoFlo Balometer Capture Hoods

Sensitive, low-volume airflow measurement for laminar diffusers and clean benches with Alnor LoFlo capture hoods.

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Alnor Micromanometers

High-resolution micromanometers for pressure, duct traverses, and flow diagnostics in life science HVAC systems.

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Alnor Rotating Vanes

Reliable rotating vane anemometers for diffuser, grille, and duct airflow measurements in labs and cleanrooms.

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Alnor Velometer Thermal Anemometers

Thermal anemometers optimized for low-velocity measurements in cleanrooms, BSCs, and clean benches.

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For decades, Alnor instruments have helped professionals quantify airflow with confidence. Within life sciences, that experience translates into tools purpose-built for controlled environments — cleanrooms, biosafety cabinets, sterile compounding areas, and research labs — where consistency and traceability matter.

A Complete Airflow Toolkit

  • Capture hoods: Measure volumetric flow at diffusers and grilles to balance supply and return across suites.
  • Micromanometry: Capture differential and static pressure, calculate velocity with pitot tubes, and derive duct flow with area inputs.
  • Rotating vane anemometers: Assess higher flow rates at grilles and ducts with robust, easy-to-use sensors.
  • Velometer thermal anemometers: Measure low, laminar velocities at benches, BSCs, and cleanroom work zones.

Built for Field Use

  • Clear displays and intuitive navigation reduce setup time and support repeatable measurements across technicians.
  • Durable housings and practical accessories suit daily work on ladders, in ceiling plenums, and near critical equipment.
  • Data handling options help you produce consistent reports and attach evidence to protocols or calibration records.

Applications in Life Sciences

  • Commission and balance HVAC for ISO-classified suites by measuring supply/return flows and adjusting terminal units.
  • Verify airflow in and around critical containment devices as part of certification routines.
  • Support USP <797>/<800> airflow checks in pharmacy cleanrooms, including diffuser balancing and room pressurization strategies.
  • Troubleshoot variability in environmental performance by systematically measuring flow and pressure across a system.

Calibration and Service

  • Routine calibration helps maintain accuracy and supports audit-ready documentation. Alnor instruments are supported by TSI service programs and calibration options with traceable references.

Choosing the Right Instrument

  • Use capture hoods where volumetric flow at a terminal is needed.
  • Select micromanometers with pitot accessories for duct traverses and pressure diagnostics.
  • Choose rotating vane anemometers for robust readings in turbulent or higher-velocity streams.
  • Apply thermal anemometers when low, directional velocities are critical to product and process integrity.

Alnor instruments help teams work efficiently, produce consistent results, and generate the documentation required for quality systems. Whether you are a TAB professional tuning a new facility or a certifier verifying critical equipment, Alnor provides the right tools to measure with confidence.


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