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IAQ

These indoor air quality meters allow HVAC/R technicians and contractors to take measurements at the air outlet, take air and surface temperatures, measure dirt on HVAC/R filters and measure ventilation in ducts. Find a wide range of these meters to fit your application.


Testo 440 Air Velocity and IAQ Measuring Instrument with digital hot wire probe and digital vane probe, ø 3.9"-

Sale Price $1,873.40 USD
Regular Price $2204.00 USD
Availability 3 Days

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Testo 440 Air Velocity and IAQ Measuring Instrument with digital hot wire probe, ø 0.35"-

Sale Price $657.05 USD
Regular Price $773.00 USD
Availability 1 to 2 Weeks

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Testo 440 Air Velocity and IAQ Measuring Instrument with digital humidity/temperature probe, ø 0.47"-

Sale Price $548.25 USD
Regular Price $645.00 USD
Availability 1 to 2 Weeks

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Testo 440 Air Velocity and IAQ Measuring Instrument with digital vane probe, ø 0.63"-

Sale Price $810.90 USD
Regular Price $954.00 USD
Availability 1 Week

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Testo 440 Air Velocity and IAQ Measuring Instrument with digital vane probe, ø 3.9"-

Sale Price $871.25 USD
Regular Price $1025.00 USD
Availability 3 to 4 Weeks

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Quantity


Testo 440 Air Velocity and IAQ Measuring Instrument with digital vane probes, ø 3.9 and 0.63"-

Sale Price $1,453.50 USD
Regular Price $1710.00 USD
Availability 2 in Stock

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Testo 440 dP Air Velocity and IAQ Measuring Instrument with differential pressure sensor-

Sale Price $603.50 USD
Regular Price $710.00 USD
Availability 1 Week

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Testo 440 dP Air Velocity and IAQ Measuring Instrument with differential pressure sensor and digital vane probe, ø 3.9"-

Sale Price $2,193.00 USD
Regular Price $2580.00 USD
Availability 3 to 4 Weeks

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Testo 440 dP Air Velocity and IAQ Measuring Instrument with differential pressure sensor and digital vane probes, ø 3.9 and 0.63"-

Sale Price $2,340.90 USD
Regular Price $2754.00 USD
Availability 3 to 4 Weeks

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Testo 535 Digital CO<sub>2</sub> Measuring Instrument, 0 to 10,000 ppm-

Sale Price $505.75 USD
Regular Price $595.00 USD
Availability 1 Week

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