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Mass Flow Meter 4040-AC

SKU: 4040-AC

Flowmeter, 300 L/min, Air, O2, N2, 22mm

ISO 17025 Accredited

Range: 0-300 L/min. Calibration: Air, O2, N2. Connection: 22 mm ISO.

$1515.00 USD

Product Details

Whether measuring gas flows in a laboratory, hospital or clinic, or manufacturing setting, TSI mass flow meters provide accurate results and support multiple data output options. The display versions come complete with accessories, making setup and operation fast and convenient.

The 4040 meter is specified as two percent of flow rate reading and covers the same range as three percent (or more) of full scale devices, with better accuracy at most points.

Fast four-millisecond response ensures accuracy in fluctuating flows. This fast response time is ideal for closed-loop control systems and integrated volume measurements. Low pressure drop minimizes flow circuit back pressure and its impact on the system.


  • Medical
  • Industrial
  • Laboratory


Purchase any one of our flow meters with the guarantee that you can return it for a full refund if not entirely happy with its performance. Applies to single unit purchases only.

Calibration and Service

Looking to calibrate your TSI 4040 Flow Meter? TSI now offers worldwide service! To find out about our service, calibration, and repair options, visit our Flow Service page.

Features and benefits

  • Range: 0-300 L/min
  • Calibration: Air, O2, N2
  • Connection: 22mm ISO 
  • Fast and accurate, 4ms response time
  • Low pressure drop 

Related Resources

  • Brochures