Alnor

For more than a generation, Alnor instruments have helped HVAC and industrial teams measure ventilation performance with confidence and efficiency. As part of TSI’s portfolio, Alnor tools combine practical field design with measurement rigor, giving TAB contractors and facility engineers the data they need to optimize systems and support compliance documentation.

A comprehensive toolkit for ventilation testing:

• Capture hoods: Measure supply and return airflow at diffusers and grilles. Multiple hood sizes, lightweight frames, and clear displays help speed through large surveys.
• LoFlo capture hoods: High-sensitivity solutions for low-volume diffusers and specialty spaces where precision at the low end matters.
• Micromanometers: High-resolution differential pressure meters for static and velocity pressure, pitot tube traverses, and flow calculations.
• Rotating vane anemometers: Rugged, easy-to-use instruments for measuring air velocity and volume at grilles, exhausts, and large openings.
• Velometer thermal anemometers: Slim-probe hot-wire instruments for low velocity diagnostics, laminar flow checks, and hard-to-reach locations.

Where Alnor supports industrial outcomes:

• Commissioning and balancing: Establish airflow baselines, verify system performance, and document results for turnover packages.
• Energy and cost improvements: Identify overventilated zones and balance systems to help reduce energy consumption without compromising conditions.
• Process ventilation: Validate capture velocities at hoods and process exhaust to support quality and workforce comfort.
• Clean and controlled areas: Monitor low velocities and pressure differentials that influence contamination control and product integrity.
• Maintenance and troubleshooting: Resolve hot/cold complaints, investigate pressurization issues, and verify corrective actions.

Designed for field productivity:

• Intuitive user interfaces with prompts and on-screen calculations reduce manual steps in the field.
• Data logging and export options streamline reporting for audits and internal quality systems.
• Durable housings, ergonomic grips, and protective cases support everyday use on busy job sites.
• Accessories such as pitot tubes, extension poles, and alternative hood sizes expand measurement flexibility.

Guidance and service:

• Application support helps teams select the right instrument for their velocity range, opening size, and pressure needs.
• Calibration services and documentation align with internal quality processes and customer requirements.
• Training resources enable consistent methods across crews and sites.

Why Alnor:

• Recognized measurement heritage paired with modern instrument features.
• Portfolio depth that covers the majority of ventilation testing tasks in industrial facilities.
• Focus on usability and reliability that helps teams complete more work in less time.

Ready to equip your team with a unified set of ventilation testing tools? Connect with TSI for product selection, quotes, and service options that fit your operation.