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Testo 440 CO₂ Kit with Bluetooth
  • Testo 440 CO₂ Kit with Bluetooth
  • Testo 440 Air Flow ComboKit 1
  • Testo 440 CO₂ Kit with Bluetooth

Testo 440 CO₂ Kit with Bluetooth

Testo Approved distributor and service company.

Includes: testo 440 air velocity & IAQ measuring instrument, USB cable, 3x AA batteries, calibration protocol, CO2 probe with Bluetooth®, including temperature and humidity sensor (consisting of CO2 probe head and Bluetooth® handle); 4x AA batteries, table stand and calibration protocol, Combi-case for testo 440 and multiple probes.

0563 4405
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With the testo 440 CO₂ kit with Bluetooth®, all IAQ-related parameters for evaluating indoor air can be measured and documented wirelessly.

The testo 440 air velocity & IAQ measuring instrument recognizes probes automatically, and its structured measurement menus simplify the adjustment of air conditioning and ventilation systems. Up to 3 probes can be connected simultaneously to the measuring instrument: a Bluetooth® probe, a wired probe and a temperature probe with Type K thermocouple connector.

The versatile Bluetooth® handle allows the connection of many different wireless probe heads for all applications. In addition to this, the kit contains a CO₂ probe head and a storage case.


Structured measurement menu for long-term measurements.
Parallel determination of CO₂ concentration, air humidity and air temperature.
Absolute pressure compensation, calculation of wet bulb temperature, dewpoint and absolute humidity.
Wireless probe, internal data storage and USB port for data export.
Can be extended with a large portfolio of digital probes.

Testo 440 Application Video

Testo 440 Specifications
Temperature NTC
Measurement Range-40 to +150 °C.
Accuracy±0.4 °C (-40 to -25.1 °C)
±0.3 °C (-25 to +74.9 °C)
±0.4 °C (+75 to +99.9 °C)
±0.5 % of mv (Remaining Range).
Temperature - TC Type K (NiCr-Ni)
Measurement Range-200 to +1370 °C.
Accuracy±(0.3 °C + 0.3 % of mv).
Resolution0.1 °C.
General Specifications
Data transmissionBluetooth®, USB interface.
Operating Temperature-20 to +50°C.
Connectable probes1 x digital probe with cable or 1 x Temperature NTC TUC, 1 x digital Bluetooth probe or testo Smart Probe, 1 x Temperature TC Type K.
Battery Type3 AA mignon 1.5 V.
Battery life12 h (typically vane measurement).
Dimensions154 x 65 x 32 mm (testo 440).
Weight250 g.
Testo 440 warranty2 years.

CO2 probe with Bluetooth
Measuring range0 to 10 000 ppm CO₂
5 to 95 %RH
0 to +50 °C
700 to 1100 hPa.
Accuracy±(50 ppm + 3 % of m.v.)
(0 to 5 000 ppm)
±(100 ppm + 5 % of m.v.)
(5001 to 10 000 ppm)
±3 %RH (10 to 35 %RH)*
±2 %RH (35 to 65 %RH)*
±3 %RH (65 to 90 %RH)*
±5 %RH (remaining meas. range)*
±0.5 °C
±3 hPa.
Resolution1 ppm
0.1 %RH
0.1 °C
0.1 hPa.
Data transmissionBluetooth®, wireless range up to 20 m.
Operating Temperature0 to +50 °C.
Storage temperature0 to +50 °C.
Dimensions295 x 50 x 40 mm.
Probe head diameterØ 30 mm.
Weight195 g.


Testo 440 CO₂ Kit Datasheet

PDF specifications of the testo 440 CO₂ Kit with parallel determination of CO₂ concentration, air humidity and air temperature.

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Testo 440 CO₂ Kit with Bluetooth

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