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TSI / Airflow LCA 501

Available for hire

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The TSI / Airflow LCA501 is a hand held digital 100mm diameter rotating vane anemometer used for air velocity and volumetric flow measurements. Typical applications include:-

- Supply and extract grilles and flow hood balancing
- HVAC commissioning and trouble shooting
- Laboratory safety monitoring
- Air conditioning and ventilation duct checks

Product Features

  • 2 model types
  • Range of accessories
  • Calibration options
  • Document downloads
  • Instrument FAQs

Instrument product options

1. Select a model (2 available)

Continue to select accessories

2. Select accessories

3. Select a calibration



Instrument overview

  • Measures both air velocity and temperature
  • Sweep mode for one overall measurement
  • Log, store and recall data
  • Download data to a PC
  • Optional telescopic probe available
  • Clear digital display


The LCA501 product can be supplied with an optional rectangular and circular Aircone kit which turns the instrument into an air volume balancing tool. For testing ventilation systems to Part F of the UK Building Regulations this product requires the use of the optional Aircone kit which must be UKAS calibrated for air volume.


Velocity measurement range 0.25 to 30 m/s

Temperature range 0 to 60 °C

Velocity display resolution 0.01 m/s

Temperature display resolution 0.1 °C

Velocity accuracy ±1% reading ±0.02m/s

Volumetric flow accuracy None stated by manufacturer

Logging interval 1 second to 1 hour

Memory 12,700 samples

Temperature accuracy ±0.5 °C

Storage temperature -20 to 60°C

Operating temperature (vane head) 0 to 60°C

Dimensions (meter) 84 mm × 178 mm × 44 mm

Weight 270g


The Instrument Solutions Hire models are all provided as standard with a telescopic handle extension.

The TSI / Airflow LCA501 model is an equivalent product to the TSI 5725 Velocicalc instrument.



TSI / Airflow LCA301 & LCA501 data sheet

  • Technical Document
  • PDF file
  • 1 MB

TSI / Airflow LCA501 user manual

  • Technical Document
  • PDF file
  • 806 KB



What is the length of the optional telescopic extension handle ?


The length of the handle fully extended is 0.98m.

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