Airflow

These airflow meters are ideally used by HVAC/R technicians, indoor air quality technicians, or energy efficiency consultants. They are ideal for fast air velocity measurement spot checks. Find a wide selection of these meters to fit your application.

Showing 21 to 36 of 36 products

Testo 0555 6451 Compressed Air Flow Transmitter, 1/2" Line
Model: 0555 6451

Sale Price	$929.05 USD
Regular Price	$1093.00 USD
Availability	7 to 8 Weeks

Qty:

Sale Price	$929.05 USD
Regular Price	$1093.00 USD
Availability	7 to 8 Weeks
Quantity	Quantity

Testo 440 Air Velocity and IAQ Measuring Instrument with digital CO₂ probe
Model: 440 | Order No: 0563 4405

Sale Price	$959.65 USD
Regular Price	$1129.00 USD
Availability	3 to 4 Weeks3 to 4 Weeks

Qty:

Sale Price	$959.65 USD
Regular Price	$1129.00 USD
Availability	3 to 4 Weeks3 to 4 Weeks
Quantity	Quantity

Testo 0555 6452 Compressed Air Flow Transmitter, 1" Line
Model: 0555 6452

Sale Price	$971.55 USD
Regular Price	$1143.00 USD
Availability	5 to 6 Weeks

Qty:

Sale Price	$971.55 USD
Regular Price	$1143.00 USD
Availability	5 to 6 Weeks
Quantity	Quantity

Testo 440 Air Velocity and IAQ Measuring Instrument with digital hot wire probe and digital vane probe, ø 3.9"
Model: 440 | Order No: 0563 4406

Sale Price	$1181.50 USD
Regular Price	$1390.00 USD
Availability	1 to 2 Weeks2 to 3 Weeks

Qty:

Sale Price	$1181.50 USD
Regular Price	$1390.00 USD
Availability	1 to 2 Weeks2 to 3 Weeks
Quantity	Quantity

Testo 440 Air Velocity and IAQ Measuring Instrument with digital vane probes, ø 3.9 and 0.63"
Model: 440 | Order No: 0563 4407

Sale Price	$1248.65 USD
Regular Price	$1469.00 USD
Availability	5 Days1 in Stock

Qty:

Sale Price	$1248.65 USD
Regular Price	$1469.00 USD
Availability	5 Days1 in Stock
Quantity	Quantity

Testo 0555 6453 Compressed Air Flow Transmitter, 1.5" Line
Model: 0555 6453

Sale Price	$1267.35 USD
Regular Price	$1491.00 USD
Availability	2 to 3 Weeks

Qty:

Sale Price	$1267.35 USD
Regular Price	$1491.00 USD
Availability	2 to 3 Weeks
Quantity	Quantity

Testo 0555 6454 Compressed Air Flow Transmitter, 2" Line
Model: 0555 6454

Sale Price	$1323.45 USD
Regular Price	$1557.00 USD
Availability	4 to 5 Weeks

Qty:

Sale Price	$1323.45 USD
Regular Price	$1557.00 USD
Availability	4 to 5 Weeks
Quantity	Quantity

Testo 400 Universal IAQ Instrument
Model: 400 | Order No: 0560 0400

Sale Price	$1698.30 USD
Regular Price	$1998.00 USD
Availability	1 to 2 Weeks

Qty:

Sale Price	$1698.30 USD
Regular Price	$1998.00 USD
Availability	1 to 2 Weeks
Quantity	Quantity

Testo 440 dP Air Velocity and IAQ Measuring Instrument with differential pressure sensor and digital vane probe, ø 3.9"
Model: 440 | Order No: 0563 4409

Sale Price	$1882.75 USD
Regular Price	$2215.00 USD
Availability	5 Days1 to 2 Weeks

Qty:

Sale Price	$1882.75 USD
Regular Price	$2215.00 USD
Availability	5 Days1 to 2 Weeks
Quantity	Quantity

Testo 440 dP Air Velocity and IAQ Measuring Instrument with differential pressure sensor and digital vane probes, ø 3.9 and 0.63"
Model: 440 | Order No: 0563 4410

Sale Price	$2340.90 USD
Regular Price	$2754.00 USD
Availability	3 to 4 Weeks3 to 4 Weeks

Qty:

Sale Price	$2340.90 USD
Regular Price	$2754.00 USD
Availability	3 to 4 Weeks3 to 4 Weeks
Quantity	Quantity

Testo 420 Air Flow Hood with Bluetooth, Includes Case and NIST Certificate
Model: 420 | Order No: 400563 4200

This product exceeds standard shipping dimensions/weight, as such it does not qualify for free shipping. We will contact you with your shipping costs.

Sale Price	$2903.60 USD
Regular Price	$3416.00 USD
Availability	1 Week

Qty:

Sale Price	$2903.60 USD
Regular Price	$3416.00 USD
Availability	1 Week
Quantity	Quantity

Testo 400 IAQ Kit for commissioning and IAQ investigation professionals
Model: 400 | Order No: 0563 0408

Sale Price	$3012.40 USD
Regular Price	$3544.00 USD
Availability	2 to 3 Weeks

Qty:

Sale Price	$3012.40 USD
Regular Price	$3544.00 USD
Availability	2 to 3 Weeks
Quantity	Quantity

Testo 400 Air Flow Kit for TAB/commissioning professionals
Model: 400 | Order No: 0563 0407

Sale Price	$3285.25 USD
Regular Price	$3865.00 USD
Availability	1 to 2 Weeks

Qty:

Sale Price	$3285.25 USD
Regular Price	$3865.00 USD
Availability	1 to 2 Weeks
Quantity	Quantity

Testo 440 Air Velocity and IAQ Measuring Instrument with digital CO₂ probe and digital turbulence probe, 3.9"
Model: 440 | Order No: 0563 4408

Sale Price	$3330.30 USD
Regular Price	$3918.00 USD
Availability	2 to 3 Weeks2 to 3 Weeks

Qty:

Sale Price	$3330.30 USD
Regular Price	$3918.00 USD
Availability	2 to 3 Weeks2 to 3 Weeks
Quantity	Quantity

Testo 420 Air Flow Capture Hood with Bluetooth
Model: 420 | Order No: 0563 4200

This product exceeds standard shipping dimensions/weight, as such it does not qualify for free shipping. We will contact you with your shipping costs.

Sale Price	$3418.70 USD
Regular Price	$4022.00 USD
Availability	1 to 2 Weeks2 to 3 Weeks

Qty:

Sale Price	$3418.70 USD
Regular Price	$4022.00 USD
Availability	1 to 2 Weeks2 to 3 Weeks
Quantity	Quantity

Testo 400 Combo Kit for comfort professionals in high performance buildings
Model: 400 | Order No: 0563 0409

Sale Price	$4051.10 USD
Regular Price	$4766.00 USD
Availability	3 to 4 Weeks

Qty:

Sale Price	$4051.10 USD
Regular Price	$4766.00 USD
Availability	3 to 4 Weeks
Quantity	Quantity

Showing 21 to 36 of 36 products

Testo 2026 spring pro system upgrade promo

Airflow

Testo 0555 6451 Compressed Air Flow Transmitter, 1/2" Line Model: 0555 6451

Qty:

Testo 440 Air Velocity and IAQ Measuring Instrument with digital CO2 probe Model: 440 | Order No: 0563 4405

Qty:

Testo 0555 6452 Compressed Air Flow Transmitter, 1" Line Model: 0555 6452

Qty:

Testo 440 Air Velocity and IAQ Measuring Instrument with digital hot wire probe and digital vane probe, ø 3.9" Model: 440 | Order No: 0563 4406

Qty:

Testo 440 Air Velocity and IAQ Measuring Instrument with digital vane probes, ø 3.9 and 0.63" Model: 440 | Order No: 0563 4407

Qty:

Testo 0555 6453 Compressed Air Flow Transmitter, 1.5" Line Model: 0555 6453

Qty:

Testo 0555 6454 Compressed Air Flow Transmitter, 2" Line Model: 0555 6454

Qty:

Testo 400 Universal IAQ Instrument Model: 400 | Order No: 0560 0400

Qty:

Testo 440 dP Air Velocity and IAQ Measuring Instrument with differential pressure sensor and digital vane probe, ø 3.9" Model: 440 | Order No: 0563 4409

Qty:

Testo 440 dP Air Velocity and IAQ Measuring Instrument with differential pressure sensor and digital vane probes, ø 3.9 and 0.63" Model: 440 | Order No: 0563 4410

Qty:

Testo 420 Air Flow Hood with Bluetooth, Includes Case and NIST Certificate Model: 420 | Order No: 400563 4200

Qty:

Testo 400 IAQ Kit for commissioning and IAQ investigation professionals Model: 400 | Order No: 0563 0408

Qty:

Testo 400 Air Flow Kit for TAB/commissioning professionals Model: 400 | Order No: 0563 0407

Qty:

Testo 440 Air Velocity and IAQ Measuring Instrument with digital CO2 probe and digital turbulence probe, 3.9" Model: 440 | Order No: 0563 4408

Qty:

Testo 420 Air Flow Capture Hood with Bluetooth Model: 420 | Order No: 0563 4200

Qty:

Testo 400 Combo Kit for comfort professionals in high performance buildings Model: 400 | Order No: 0563 0409

Qty:

Testo 0555 6451 Compressed Air Flow Transmitter, 1/2" Line
Model: 0555 6451

Testo 440 Air Velocity and IAQ Measuring Instrument with digital CO₂ probe
Model: 440 | Order No: 0563 4405

Testo 0555 6452 Compressed Air Flow Transmitter, 1" Line
Model: 0555 6452

Testo 440 Air Velocity and IAQ Measuring Instrument with digital hot wire probe and digital vane probe, ø 3.9"
Model: 440 | Order No: 0563 4406

Testo 440 Air Velocity and IAQ Measuring Instrument with digital vane probes, ø 3.9 and 0.63"
Model: 440 | Order No: 0563 4407

Testo 0555 6453 Compressed Air Flow Transmitter, 1.5" Line
Model: 0555 6453

Testo 0555 6454 Compressed Air Flow Transmitter, 2" Line
Model: 0555 6454

Testo 400 Universal IAQ Instrument
Model: 400 | Order No: 0560 0400

Testo 440 dP Air Velocity and IAQ Measuring Instrument with differential pressure sensor and digital vane probe, ø 3.9"
Model: 440 | Order No: 0563 4409

Testo 440 dP Air Velocity and IAQ Measuring Instrument with differential pressure sensor and digital vane probes, ø 3.9 and 0.63"
Model: 440 | Order No: 0563 4410

Testo 420 Air Flow Hood with Bluetooth, Includes Case and NIST Certificate
Model: 420 | Order No: 400563 4200

Testo 400 IAQ Kit for commissioning and IAQ investigation professionals
Model: 400 | Order No: 0563 0408

Testo 400 Air Flow Kit for TAB/commissioning professionals
Model: 400 | Order No: 0563 0407

Testo 440 Air Velocity and IAQ Measuring Instrument with digital CO₂ probe and digital turbulence probe, 3.9"
Model: 440 | Order No: 0563 4408

Testo 420 Air Flow Capture Hood with Bluetooth
Model: 420 | Order No: 0563 4200

Testo 400 Combo Kit for comfort professionals in high performance buildings
Model: 400 | Order No: 0563 0409