testo 440 delta P Air Flow ComboKit 1 with Bluetooth<sup>®</sup>

: 0560 4402

testo 440 dP - Air velocity and IAQ measuring instrument including differential pressure sensor

Intuitive: clearly structured measurement menus for volume flow, K-factor, degree of turbulence, cooling/heating output, mould detection and long-term measurement, such as CO₂

: 0635 9431

Vane probe (Ø 100 mm, digital) - with Bluetooth^® including temperature sensor

Intuitive: clearly structured measurement menu for volume flow and parallel determination of air velocity, volume flow and air temperature

: 0635 1570

Hot wire probe head including temperature and humidity sensor

Intuitive: parallel determination of relative humidity and air temperature in indoor areas, including long-term measurement

: 0554 0960

Extendable telescope (up to 1 m in length) for flow probes

The telescope is 1.0 m long when extended

: 0516 4401

Combi-case - for testo 440 and multiple probe

Case for the testo 440 or testo 440 dP air velocity and IAQ measuring instrument

testo 440 dP - Air velocity and IAQ measuring instrument including differential pressure sensor

0560 4402

Temperature - NTC

Temperature - NTC	Measuring range -40 to +150 °C
	Accuracy ±0.4 °C (-40 to -25.1 °C) ±0.4 °C (+75 to +99.9 °C) ±0.5 % of mv (Remaining Range) ±0.3 °C (-25 to +74.9 °C)
	Resolution 0.1 °C

Temperature - TC Type K (NiCr-Ni)

Temperature - TC Type K (NiCr-Ni)	Measuring range -200 to +1370 °C
	Accuracy ±(0.3 °C + 0.3 % of mv)
	Resolution 0.1 °C

Differential pressure (internal sensor) - Piezoresistive

Differential pressure (internal sensor) - Piezoresistive	Measuring range -150 to +150 hPa
	Accuracy ±0.05 hPa (0 to 1.00 hPa) (1.01 to +150 hPa) ±0.2 hPa + 1.5 % of mv
	Resolution 0.01 hPa

General technical data

General technical data	Weight 250 g
	Dimensions 154 x 65 x 32 mm
	Operating temperature -20 to +50 °C
	Connectable probes 1 x digital probe with cable or 1 x Temperature NTC TUC, 1 x digital Bluetooth probe or testo Smart Probe, 1 x differential pressure (internal), 1 x Temperature TC Type K
	Product colour black/orange
	Battery life 12 h (typically vane measurement)
	Battery type 3 AA mignon 1.5 V
	Interface Bluetooth®; USB
	Storage temperature -20 to +50 °C

Vane probe (Ø 100 mm, digital) - with Bluetooth^® including temperature sensor

0635 9431

General technical data

General technical data	Storage temperature -20 to +60 °C
	Weight 360 g
	Dimensions 375 x 105 x 46 mm
	Operating temperature -5 to +50 °C
	Probe head diameter 100 mm
	Product colour black/orange
	Battery type 4 x type AA batteries
	Battery life 60 h
	Data transfer Bluetooth®
	Radio range 20 m

Temperature - NTC

Temperature - NTC	Measuring range -20 to +70 °C
	Accuracy ±0.5 °C
	Resolution 0.1 °C

Velocity / Volume flow

Velocity / Volume flow	Measuring range 0.3 to 35 m/s
	Accuracy ±(0.1 m/s + 1.5 % of mv) (0.3 to 20 m/s) ±(0.2 m/s + 1.5 % of mv) (20.01 to 35 m/s)
	Resolution 0.01 m/s

Hot wire probe head including temperature and humidity sensor

0635 1570

Temperature - NTC

Temperature - NTC	Measuring range -20 to +70 °C
	Accuracy ±0.8 °C (-20 to 0 °C) ±0.5 °C (0 to +70 °C)
	Resolution 0.1 °C

Humidity - Capacitive

Humidity - Capacitive	Measuring range 5 to 95 %RH
	Accuracy Hysteresis: ±1.0 %RH ±3 %RH (10 to 35 %RH) ±0.06 %RH/K (k=1) long-term stability: ±1%RH / year ±3 %RH (65 to 90 %RH) ±5 %RH (Remaining Range) ±2 %RH (35 to 65 %RH)
	Resolution 0.1 %RH

Absolute Pressure

Absolute Pressure	Measuring range +700 to +1100 hPa
	Accuracy ±3.0 hPa
	Resolution 0.1 hPa

Velocity - Hot wire

Velocity - Hot wire	Measuring range 0 to 30 m/s
	Accuracy ±(0.5 m/s + 5 % of mv) (0 to 20 m/s) ±(0.03 m/s + 4 % of mv) (20.01 to 30 m/s)
	Resolution 0.01 m/s

General technical data

General technical data	Storage temperature -20 to +70 °C
	Weight 35 g
	Dimensions 235 x 9 x 9 mm
	Operating temperature -20 to +70 °C
	Diameter probe shaft 9 mm
	Length probe shaft 230 mm
	Product colour Black

Extendable telescope (up to 1 m in length) for flow probes

0554 0960

General technical data

General technical data	Weight 155 g
	Dimensions angle: 65 x 65 x 15 mm telescope: 375 x 17 x 16 mm
	Operating temperature -5 to +50 °C
	Length telescope 1,000 mm
	Diameter telescope 12 mm
	Product colour Black
	Storage temperature -20 to +60 °C

Combi-case - for testo 440 and multiple probe

0516 4401

General technical data

General technical data	Weight 1400 g
	Dimensions 516 x 135 x 256 mm
	Product colour Black

testo 440 dP air velocity and IAQ measuring instrument including differential pressure sensor, connection hose, 3 x AA batteries, USB cable and calibration protocol (0560 4402)
Vane probe (Ø 100 mm) with Bluetooth^® including temperature sensor (consisting of 100 mm vane probe head, handle adapter and Bluetooth^® handle); bracket for testovent measurement funnel; 4 x AA batteries and calibration protocol (0635 9431)
Hot wire probe head (Ø 9 mm) including temperature and humidity sensor and calibration protocol (0635 1570)
Extendable telescope (up to 1 m in length) for air velocity probes with a universal handle including 90° angle (0554 0960)
Combi-case for testo 440 and multiple probes (0516 4401)

Comfort probes

: 0628 0152

Turbulence probe (digital) - wired

Intuitive: clearly structured measurement menu for determining the degree of turbulence and draught risk according to EN ISO 7730 / ASHRAE 55

: 0635 0551

Lux probe (digital) - for measuring illuminance, wired

Intuitive: clearly structured measurement menu for long-term measurement and determination of illuminance according to the V-lambda curve (suitable for all common light sources)

CO2 probe (digital) with Bluetooth® including temperature and humidity sensor

: 0632 1551

CO₂ probe (digital) - with Bluetooth^® including temperature and humidity sensor

Intuitive: clearly structured measurement menu for long-term measurement and parallel determination of CO₂ concentration, humidity and air temperature in indoor areas

CO2 probe (digital) including temperature and humidity sensor, wired

: 0632 1552

CO₂ probe (digital) - including temperature and humidity sensor, wired

Intuitive: clearly structured measurement menu for long-term measurement and parallel determination of CO₂ concentration, humidity and air temperature in indoor areas

CO2 probe head including temperature and humidity sensor

: 0632 1550

CO₂ probe head including temperature and humidity sensor

Intuitive: parallel determination of CO₂ concentration, humidity and air temperature in indoor areas, including long-term measurement

: 0632 1271

CO probe (digital) - with Bluetooth^®

Intuitive: clearly structured measurement menu for long-term measurement and determination of CO concentration in indoor areas, e.g. in boiler rooms

Humidity probes

: 0636 9731

Humidity/temperature probe (digital) - with Bluetooth^®

Intuitive: clearly structured measurement menu for long-term measurement and parallel determination of the relative humidity and air temperature in indoor areas

: 0636 9732

Humidity/temperature probe (digital) - wired

Intuitive: clearly structured measurement menu for long-term measurement and parallel determination of the relative humidity and air temperature in indoor areas

: 0636 9730

Humidity/temperature probe head

Intuitive: parallel determination of relative humidity and air temperature in indoor areas, including long-term measurement

: 0636 9771

High-precision humidity/temperature probe (digital) - with Bluetooth^®

Intuitive: clearly structured measurement menu for long-term measurement and parallel determination of the relative humidity and air temperature in indoor areas

: 0636 9772

High-precision humidity/temperature probe (digital) - wired

Intuitive: clearly structured measurement menu for long-term measurement and parallel determination of the relative humidity and air temperature in indoor areas

: 0636 9770

High-precision humidity/temperature probe head

Intuitive: parallel determination of relative humidity and air temperature in indoor areas, including long-term measurement

Pitot tubes

: 0635 2045

Stainless steel Pitot tube, length 500 mm, Ø 7 mm - for measuring flow velocity

For measuring flow velocity

: 0635 2145

Stainless steel Pitot tube, length 350 mm, Ø 7 mm - for measuring flow velocity

For measuring flow velocity

: 0635 2345

Stainless steel Pitot tube, length 1000 mm, Ø 7 mm - for measuring flow velocity

For measuring flow velocity

: 0635 2043

Straight Pitot tube 360 mm

For measuring flow velocities, e.g. in ventilation ducts or process air

: 0635 2143

Straight Pitot tube 500 mm

For measuring flow velocities, e.g. in ventilation ducts or process air

: 0635 2243

Straight Pitot tube 1000 mm

For measuring flow velocities, e.g. in ventilation ducts or process air

Pressure probes

: 0560 1510

testo 510i - differential pressure measuring instrument with smartphone operation

Measurement of gas flow and static pressure

: 0560 1549

testo 549 i - high-pressure measuring instrument with smartphone operation

Measurement of high and low pressure

: 0560 2549 02

testo 549i - High-pressure gauge operated via smartphone

Measurement of high and low pressure

Temperature probes

: 0560 1805

testo 805i - infrared thermometer with smartphone operation

Non-contact infrared measurement of surface temperature

: 0615 1212

Waterproof immersion/penetration probe - with NTC temperature sensor

Measuring range from -50 to +150 °C; accuracy of up to ±0.2 °C

: 0615 1712

Robust air probe - with NTC temperature sensor

Measuring range from -50 to +125 °C; accuracy of up to ±0.2 °C

: 0615 5505

Clamp probe with NTC temperature sensor - for measurements on pipes (Ø 6-35 mm)

Measuring range from -40 to +125 °C

: 0602 1793

Robust air temperature probe (TC type K)

Thermocouple type K

Fast-action surface probe with sprung thermocouple strip

: 0602 0393

Fast-action surface probe (TC type K)

Fast response time (3 seconds) thanks to the thermocouple strip

Velocity

: 0635 1571

Hot wire probe (digital) - with Bluetooth^® including temperature and humidity sensor

Intuitive: clearly structured measurement menu for volume flow and parallel determination of air velocity, volume flow, air temperature and humidity

: 0635 1572

Hot wire probe (digital) - including temperature and humidity sensor, wired

Intuitive: clearly structured measurement menu for volume flow and parallel determination of air velocity, volume flow, air temperature and humidity

: 0635 1570

Hot wire probe head including temperature and humidity sensor

Intuitive: parallel determination of relative humidity and air temperature in indoor areas, including long-term measurement

: 0635 9571

Vane probe (Ø 16 mm, digital) - with Bluetooth^®, including temperature sensor

Intuitive: clearly structured measurement menu for volume flow and parallel determination of air velocity, volume flow and air temperature

: 0635 9572

Vane probe (Ø 16 mm, digital) - including temperature sensor, wired

Intuitive: clearly structured measurement menu for volume flow and determination of air velocity, volume flow and air temperature

: 0635 9570

16 mm vane probe head including temperature sensor

Intuitive: parallel determination of flow velocity, volume flow and temperature

Sets

: 0563 4409

testo 440 delta P Air Flow ComboKit 1 with Bluetooth®

Intuitive: clearly structured measurement menu for volume flow and parallel determination of air velocity, differential pressure, humidity and temperature in ventilation ducts or at ventilation outlets

: 0563 4410

testo 440 delta P Air Flow ComboKit 2 with Bluetooth®

Convenience and maximum flexibility for duct and outlet measurements

Use our large range of air velocity probes (please order probes that are not included in the kit separately) to carry out simple, convenient measurements even at locations that are difficult to access in ventilation ducts or at air outlets:

You can even carry out easy measurements in particularly large ducts. This is because the extendable telescope on the hot wire and vane probe (Ø 16 mm) with universal handle can be further extended using the telescope extension – enabling you to attain a total length of 2 metres.

Carry out measurements at air/ceiling outlets effortlessly and without using a ladder. Fit your vane probe (Ø 100 mm) with the telescope with 90° angle and, if necessary, with the telescope extension (both can be ordered separately).

Greater freedom thanks to Bluetooth: the air velocity probes with Bluetooth have no inconvenient cable connection to the measuring instrument, and they transmit readings up to a distance of 20 m. Press the button on the probe to operate the measuring instrument – for example, to start and stop a series of measurements (timed mean calculation).

Attach the testo 440 dP air velocity and IAQ measuring instrument to metal surfaces (e.g. ducts) easily using the practical magnets.

Benefit from fast calculation of the volume flow: in the “volume flow” measurement menu of the multifunction measuring instrument, configure the dimensions and geometry of the duct cross-section – the measuring instrument shows you the volume flow straight away.

Long-term monitoring of indoor air quality

Poor indoor air quality due to excessive concentrations of CO₂ can cause tiredness, lack of concentration and even illness. With its menu for recording readings, the testo 440 air velocity and IAQ measuring instrument is ideal for monitoring the indoor air quality. Enter the measurement time and the measuring cycle – and, for example, track the change in CO₂ concentration or humidity and temperature values over the course of the day. Simply choose between probes with Bluetooth or fixed cable for CO₂, CO or humidity (please order probes separately).

Turbulence measurement in accordance with EN ISO 7730 / ASHRAE 55

Determine the degree of turbulence and the draught risk in the workplace: draught restricts the comfort level and is the most common cause of complaints about the indoor climate. The turbulence probe (please order separately) measures air velocity and air temperature, and automatically calculates the draught risk and the degree of turbulence in accordance with EN ISO 7730/ASHRAE 55.
For convenient measurements at varying heights, we recommend using our measuring tripod for comfort level measurement (please order separately). This makes it very easy to position turbulence probes in compliance with the standards.

Range of probes for cleanrooms and laboratories

The testo 440 air velocity & IAQ measuring instrument is also ideal for a wide variety of applications in cleanrooms and laboratories in conjunction with the following probes:

High-precision flow measurement in fume cupboards with the fume cupboard probe
Thanks to the low start-up speed of 0.1 m/s, the high-precision vane probe (Ø 100 mm) is ideal for laminar flow measurements in cleanrooms. It is available as a variant with Bluetooth or with fixed cable
To measure the humidity in cleanrooms, we recommend the high-precision humidity/temperature probe (0636 9771 or 0636 9772). With an accuracy of ±(0.6 %RH + 0.7% of m.v.) (0 to 90 %RH), it also meets the requirements for humidity measurements in this particularly sensitive area
Use the high-precision digital Pt100 temperature probes, for example, for high-precision comparative measurements in calibration laboratories, temperature measurements in chemical laboratories or in the cosmetics industry as well as for determining the temperature distribution in refrigerators and conditioning cabinets