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testo 440 Lux Kit

testo 440 Lux Kit

0563 4402

testo 440 Lux Kit

0563 4402

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

Precise: standard-compliant accuracy according to DIN EN 13032-1 and class C according to DIN 5032-7

Convenient: non-slip probe contact surface for convenient positioning at the measuring location, internal data storage and USB port for data export

As multifaceted as your challenges themselves: the air velocity and IAQ measuring instrument can be expanded with a large portfolio of digital probes

Kit for measuring the illuminance in workplaces, for example in offices or in production areas. Keep the testo 440 air velocity and IAQ measuring instrument and a lux probe safely stowed away in the case. So you can get down to work straight away!

testo 440 air velocity and IAQ measuring instrument, 3 x AA batteries, USB cable and calibration protocol (0560 4401)
Lux probe with fixed cable (cable length 1.4 m) and calibration protocol (0635 0551)
Basic case for testo 440 and 1 probe

testo 440 – testo 440 air velocity and IAQ measuring instrument

: 0560 4401

Lux probe (digital) for measuring illuminance, wired

Lux probe (digital), wired: for measuring illuminance in workplaces (e.g. offices, production areas) – measuring range 0 to 100,000 lux

: 0635 0551

testo 440 – testo 440 air velocity and IAQ measuring instrument

0560 4401

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)

Measuring range	-200 to +1370 °C
Accuracy	±(0.3 °C + 0.3 % of mv)
Resolution	0.1 °C

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 Temperature TC Type K
Product colour	black/orange
Battery type	3 AA mignon 1.5 V
Battery life	12 h (typically vane measurement)
Interface	Bluetooth®; USB
Storage temperature	-20 to +50 °C

Lux probe (digital), wired: for measuring illuminance in workplaces (e.g. offices, production areas) – measuring range 0 to 100,000 lux

0635 0551

Light

Measuring range	0 to 9300 ftc 0 to 100000 Lux
Accuracy	F1 = 6 % = V(Lambda) adjustment Class C according to DIN 5032-7 DIN 13032-1 Appendix B F2 = 5 % = cos-true evaluation
Resolution	0.1 Lux (< 10000 ) 1 Lux (> 10000 )

General technical data

Storage temperature	-20 to +50 °C
Weight	110 g
Dimensions	110 x 55 x 22 mm
Operating temperature	0 to +50 °C
Cable length	1.4 m
Product colour	Black

Comfort probes

Turbulence probe (digital), wired: for determining the degree of turbulence and draught risk according to EN ISO 7730 / ASHRAE 55 – measuring range 0 to +5 m/s, 0 to +50 °C

:
0628 0152

Comfort probes

Lux probe (digital), wired: for measuring illuminance in workplaces (e.g. offices, production areas) – measuring range 0 to 100,000 lux

:
0635 0551

Comfort probes

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

CO₂ probe (digital) with Bluetooth^® including temperature and humidity sensor: for measuring the indoor air quality in offices, production areas or storage facilities – measuring range 0 to 10,000 ppm, -10 to +50 °C, 5 to 95% RH

:
0632 1551

Comfort probes

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

CO₂ probe (digital) including temperature and humidity sensor, wired: for measuring the indoor air quality in offices, production areas or storage facilities – measuring range 0 to 10,000 ppm, -10 to +50 °C, 5 to 95% RH

:
0632 1552

Comfort probes

CO2 probe head including temperature and humidity sensor

CO₂ probe head including temperature and humidity sensor: for attachment to universal Bluetooth^® or cable handle – measuring range 0 to 10,000 ppm, -10 to +50 °C, 5 to 95% RH

:
0632 1550

Comfort probes

CO probe (digital) with Bluetooth^®: for measuring carbon monoxide in indoor areas (e.g. boiler rooms) – measuring range 0 to 500 ppm

:
0632 1271

Comfort probes

CO probe (digital), wired: for measuring carbon monoxide in indoor areas (e.g. boiler rooms) – measuring range 0 to 500 ppm

:
0632 1272

Comfort probes

CO probe head: for attachment to universal Bluetooth^® or cable handle – measuring range 0 to 500 ppm

:
0632 1270

Comfort probes

Globe thermometer (TC type K) for the measurement of radiant heat – measuring range 0 to + 120 °C

:
0602 0743

Humidity probes

Humidity/temperature probe (digital) with Bluetooth^®: for measurements in rooms, ventilation ducts, refrigeration systems and heat pumps – accuracy ±2% RH / ±0.5 °C, measuring range 0 to 100% RH / -20 to +70 °C

:
0636 9731

Humidity probes

Humidity/temperature probe (digital), wired: for measurements in rooms, ventilation ducts, refrigeration systems and heat pumps – accuracy ±2% RH / ±0.5 °C, measuring range 0 to 100% RH / -20 to +70 °C

:
0636 9732

Humidity probes

Humidity/temperature probe head: for attachment to universal Bluetooth^® or cable handle – accuracy ±2% RH / ±0.5 °C, measuring range 0 to 100% RH / -20 to +70 °C

:
0636 9730

Humidity probes

High-precision humidity/temperature probe (digital) with Bluetooth^®: for measurements in cleanrooms and laboratories, and critical processes in the pharmaceutical, industrial and food sectors, as well as in storage, refrigerated and work rooms or in air conditioning/ventilation ducts - accuracy: ±(0.6% RH + 0.7 % of m.v.) (0 to 90% RH) / ±0.3 °C (+15 to +30 °C)

:
0636 9771

Humidity probes

High-precision humidity/temperature probe (digital), wired: for measurements in cleanrooms and laboratories, and critical processes in the pharmaceutical, industrial and food sectors, as well as in storage, refrigerated and work rooms or in air conditioning/ventilation ducts - accuracy: ±(0.6% RH + 0.7 % of m.v.) (0 to 90% RH) / ±0.3 °C (+15 to +30 °C)

:
0636 9772

Humidity probes

High-precision humidity/temperature probe head: for attachment to a universal Bluetooth^® or cable handle – accuracy: ±(0.6% RH + 0.7 % of m.v.) (0 to 90% RH) / ±0.3 °C (+15 to +30 °C)

:
0636 9770

Humidity probes

Robust humidity/temperature probe (digital) for temperatures up to +180 °C, wired: for measurements in industrial exhaust air, in bulk materials and in climatic test cabinets – accuracy ±2% RH (2.1 to 98% RH) / ±0.4 °C (0.1 to +50 °C), measuring range 0 to 100% RH / -20 to +180 °C

:
0636 9775

Humidity probes

testo 605i - thermohygrometer operated via smartphone

:
0560 2605 02

Pressure probes

testo 510i – differential pressure measuring instrument with smartphone operation

:
0560 1510

Pressure probes

testo 549i - High-pressure gauge operated via smartphone

:
0560 2549 02

Temperature probes

testo 805i – infrared thermometer with smartphone operation

:
0560 1805

Temperature probes

Waterproof immersion/penetration probe with NTC temperature sensor

Waterproof immersion/penetration probe (NTC temperature sensor) for temperature measurements in liquids and semi-solid media – measuring range -50 to +150 °C, accuracy ±0.2 °C (-25 to +74.9 °C)

:
0615 1212

Temperature probes

Robust air probe with NTC temperature sensor

Robust air probe (NTC temperature sensor) with a short response time, for measuring air temperature – measuring range -50 to +125 °C, accuracy ±0.2 °C (-25 to +80 °C)

:
0615 1712

Temperature probes

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

Clamp probe (NTC temperature sensor) for measuring the surface temperature of pipes (Ø 6-35 mm) – measuring range -40 to +125 °C

:
0615 5505

Temperature probes

Robust air temperature probe (TC type K) – measuring range: -60 to +400 °C

:
0602 1793

Temperature probes

Fast-action surface probe with sprung thermocouple strip

Fast-action surface probe (TC type K) – measuring range -60 to +300 °C, short-term up to +500 °C

:
0602 0393

Temperature probes

Fast-reaction paddle surface probe (TC type K) - Measuring range: - 0 to +300°C

:
0602 0193

Temperature probes

Efficient, waterproof surface probe with small measurement head

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:
0602 0693

Temperature probes

Fast-action, angled surface temperature probe (TC type K) for flat and uneven surfaces – measuring range: -60 to +300 °C

:
0602 0993

Temperature probes

Magnetic probe (TC type K) - for surface temperatures

Surface temperature probe with magnet (TC type K), adhesive power 20 N – Measuring range -50 to +170°C

:
0602 4792

Temperature probes

Magnetfühler, Haftkraft ca. 10 N, mit Haft-Magneten

Surface temperature probe with magnet (TC type K), adhesive power 10 N – Measuring range -50 to +400°C

:
0602 4892

Temperature probes

Waterproof surface probe with widened measurement tip

Waterproof surface temperature probe with widened measuring tip (TC type K) for flat surfaces – measuring range -60 to +400 °C

:
0602 1993

Temperature probes

Temperature probe with Velcro (TC Type K)

:
0628 0020

Temperature probes

Pipe wrap probe for pipe diameter 5 to 65 mm

Temperature probe (TC type K) with clamping bracket for measurements on pipes with Ø 5-65 mm – Measuring range -60 to +130°C, briefly up to +280°C

:
0602 4592

Temperature probes

Clamp probe (TC type K) for temperature measurements on pipes with Ø 15-25 mm – Measuring range -50 to +100°C, briefly up to +130°C

:
0602 4692

Temperature probes

Efficient and fast-action immersion probe, waterproof

Flexible, fast-action immersion probe (TC type K) – measuring range: -60 to +1000 °C

:
0602 0593

Temperature probes

Fast-action, waterproof immersion/penetration probe

Fast-action immersion/penetration probe (TC type K) – measuring range: -60 to +800 °C

:
0602 2693

Temperature probes

Immersion measuring tip with TC plug type K - for fast temperature measurements

:
0602 5792

Temperature probes

Immersion measurement tip, flexible, for measurements in air

Flexible immersion measuring tip (TC type K) - Measuring range: -40 to +1000°C

:
0602 5693

Temperature probes

Waterproof immersion/penetration probe (TC type K) – measuring range -60 to +400 °C

:
0602 1293

Temperature probes

Flexible, low-mass immersion measurement tip

Exceptionally fast temperature probe (TC Type K)

:
0602 0493

Temperature probes

Wasserdichter Lebensmittelfühler aus Edelstahl (IP65)

Waterproof stainless steel food probe (TC type K) - measuring range: -60 to +400°C

:
0602 2292

Temperature probes

Thermocouple with TC adapter, flexible, 800 mm long

Flexible thermoelectric couple (TC type K, glass fibre) – Measuring range: -50 to +400°C

:
0602 0644

Temperature probes

Thermocouple with TC adapter, flexible, length 1500 mm

Flexible thermoelectric couple (TC type K, glass fibre) – measuring range -50 to +400°C

:
0602 0645

Temperature probes

Thermocouple with TC adapter, flexible, 1500 mm long, PTFE

Flexible thermoelectric couple (TC type K, PTFE) – measuring range -50 to +250°C

:
0602 0646

Temperature probes

Flexible temperature probe (digital) with Pt100 temperature sensor: for temperature measurements in locations that are difficult to access and in liquids – measuring range -100 to +260 °C

:
0618 0071

Temperature probes

Robust, fast-action air probe (digital)

:
0618 0072

Temperature probes

Immersion/penetration probe (digital) with Pt100 temperature sensor: for temperature measurements in liquids and pastes – measuring range -100 to +400 °C, accuracy up to ±0.15 °C

:
0618 0073

Temperature probes

Glass-coated laboratory probe (Pt100 temperature sensor, digital) for temperature measurements in aggressive media – measuring range -50 to +400 °C

:
0618 7072

Temperature probes

High-precision immersion/penetration probe (digital)

High-precision immersion/penetration probe (Pt100 temperature sensor, digital) for temperature measurements in liquids and pastes – measuring range -80 to +300 °C, accuracy up to ±0.05 °C

:
0618 0275

Temperature probes

Pipe wrap probe with NTC temperature sensor for measurements on pipes (Ø 5-65 mm)

Pipe wrap probe (NTC temperature sensor) for measuring the surface temperature of pipes (Ø 5-65 mm) – measuring range -60 to +130 °C

:
0615 5605

Temperature probes

testo 115i - Clamp thermometer operated via smartphone

:
0560 2115 02

Velocity

Hot wire probe (digital) with Bluetooth^®including temperature and humidity sensor: for measurements in ventilation ducts – measuring range 0 to +50 m/s, -20 to +70 °C, 5 to 95% RH

:
0635 1571

Velocity

Hot wire probe (digital) including temperature and humidity sensor, wired: for measurements in ventilation ducts – measuring range 0 to +50 m/s, -20 to +70 °C, 5 to 95% RH

:
0635 1572

Velocity

Hot wire probe head including temperature and humidity sensor: for attachment to extendable telescope for air velocity probes with universal handle – measuring range 0 to +50 m/s, -20 to +70 °C, 5 to 95% RH

:
0635 1570

Velocity

Vane probe (Ø 16 mm, digital) with Bluetooth® including temperature sensor: for measurements in ventilation ducts – measuring range +0.6 to +50 m/s, -10 to +70 °C

:
0635 9571

Velocity

Vane probe (Ø 16 mm, digital) including temperature sensor, wired: for measurements in ventilation ducts – measuring range +0.6 to +50 m/s, -10 to +70 °C

:
0635 9572

Velocity

16 mm vane probe head including temperature sensor; for attachment to extendable telescope for air velocity probes with universal handle – measuring range +0.6 to +50 m/s, -10 to +70 °C

:
0635 9570

Velocity

Hot wire probe (digital) including temperature sensor, wired: for measurements in ventilation ducts – measuring range 0 to 30 m/s, -20 to +70 °C

:
0635 1032

Velocity

Vane probe (Ø 16 mm, digital), wired: for measurements in ventilation ducts – measuring range +0.6 to +50 m/s

:
0635 9532

Velocity

Fume cupboard probe (digital), wired: for measuring inflow speed and exhaust air volume flow in fume cupboards according to DIN EN 14175-3/-4 – measuring range 0 to 5 m/s, 0 to +50 °C

:
0635 1052

Velocity

High-precision vane probe (Ø 100 mm, digital) with Bluetooth^® including temperature sensor: for measurements at air outlets in cleanrooms and at plate outlets, ventilation grilles or swirl outlets – measuring range +0.1 to +15 m/s, -20 to +70 °C

:
0635 9371

Velocity

High-precision vane probe (Ø 100 mm, digital) including temperature sensor, wired: for measurements at air outlets in cleanrooms, as well as at plate outlets, ventilation grilles or swirl outlets – measuring range +0.1 to +15 m/s, -20 to +70 °C

:
0635 9372

Velocity

High-precision 100 mm vane probe head including temperature sensor: for attachment to extendable telescope for air velocity probes with universal handle or to a universal Bluetooth^® or cable handle – measuring range +0.1 to +15 m/s, -20 to +70 °C

:
0635 9370

Velocity

Vane probe (Ø 100 mm, digital) with Bluetooth^® including temperature sensor: for measurements at ceiling/air outlets and at plate outlets, ventilation grilles or swirl outlets – measuring range +0.3 to +35 m/s, -20 to +70 °C

:
0635 9431

Velocity

Vane probe (Ø 100 mm, digital) including temperature sensor, wired: for measurements at ceiling/air outlets and at plate outlets, ventilation grilles or swirl outlets – measuring range +0.3 to +35 m/s, -20 to +70 °C

:
0635 9432

Velocity

100 mm vane probe head: for attachment to extendable telescope for air velocity probes with universal handle or to universal Bluetooth^® or cable handle – measuring range +0.3 to +35 m/s, -20 to +70 °C

:
0635 9430

Velocity

testo 405i – thermal anemometer with smartphone operation

:
0560 1405

Velocity

testo 410i – vane anemometer with smartphone operation

:
0560 1410

Velocity

Hot wire probe (Ø 7.5 mm, digital), incl. temperature sensor, fixed cable: for measurement in ventilation ducts, at plate outlets, ventilation grilles – measuring range 0 to 20 m/s, -20 to +70 °C

:
0635 1026

Velocity

Hot ball probe (Ø 3 mm) - for flow and temperature

Hot ball probe (Ø 3 mm, digital), incl. temperature sensor, fixed cable: for measurement in non-directional air flows – measuring range 0 to 10 m/s, -20 to +70 °C

:
0635 1051

Sets

testo 440 Hot Wire Kit: for measuring air velocity, volume flow and temperature in ventilation ducts with a hot wire probe

:
0563 4400

Sets

testo 440 16 mm Vane Kit: for measuring air velocity and volume flow in ventilation ducts with a vane probe (Ø 16 mm)

:
0563 4401

Sets

testo 440 Lux Kit for measuring the illuminance in workplaces with a lux probe

:
0563 4402

Sets

testo 440 100 mm Vane Kit with Bluetooth^®: for measuring air velocity, volume flow and temperature at air outlets

:
0563 4403

Sets

testo 440 Humidity Kit with Bluetooth^®: for measuring humidity and temperature in storage, refrigerated and work rooms, in ventilation ducts and also on refrigeration systems and heat pumps using the humidity/temperature probe with Bluetooth

:
0563 4404

Sets

testo 440 CO₂ Kit with Bluetooth^®: for measuring CO₂ concentration, humidity and temperature in indoor areas and for evaluating the indoor air quality (IAQ) with a CO₂ probe

:
0563 4405

Sets

testo 440 Air Flow ComboKit 1 with Bluetooth®t 1 with Bluetooth

testo 440 Air Flow ComboKit 1 with Bluetooth^®: for measuring air velocity, volume flow and temperature in ventilation ducts (with Ø 9 mm hot wire probe) and at air outlets (with Ø 100 mm vane probe)

:
0563 4406

Sets

testo 440 Air Flow ComboKit 2 with Bluetooth®

testo 440 flow combo-kit 2 with Bluetooth^®: for measuring flow, volume flow and temperature in ventilation ducts (with Ø 16 mm vane probe) and at air outlets (with Ø 100 mm vane probe)

:
0563 4407

Sets

testo 440 Indoor Comfort ComboKit with Bluetooth^®: for evaluating the indoor air quality (CO₂ concentration, temperature and humidity) with CO₂ probe and for determining the degree of turbulence and draught risk in workplaces according to EN ISO 7730 / ASHRAE 55 (with turbulence probe)

:
0563 4408

Sets

testo 440 laboratory kit: for measuring the temperature in aggressive media with Pt100 laboratory probe

:
0563 4412

Accessories

BLUETOOTH®-/IRDA printer with Bluetooth® and IrDA interface for printing out measurement data and graphs from compatible Testo measuring instruments or Testo Apps

:
0554 0621

Accessories

Measuring tripod for IAQ and comfort level measurements, to ensure standard-compliant, secure positioning of measuring instrument and probes including transport bag

:
0554 1591

Accessories

Measuring tripod for flow measurements, for standard-compliant and secure positioning of probes

:
0554 1592

Accessories

Universal Bluetooth® handle for connecting probe heads

Bluetooth^® handle for connecting probe heads: transmits readings conveniently via Bluetooth

:
0554 1111

Accessories

Universal cable handle for connecting probe heads

Cable handle for connecting probe heads: transmits readings via cable

:
0554 2222

Accessories

testovent 417 volume flow straightener set

testovent 417 flow straightener set for volume flow measurement, consisting of the testovent 417 volume flow straightener and the testovent 417 funnel set

:
0554 4173

Accessories

testovent 417 funnel set for volume flow measurement, consisting of a funnel for plate outlets (Ø 200 mm) and a funnel for ventilation grilles (330 x 330 mm), used with 100 mm vane

:
0563 4170

Accessories

Flow straightener testovent 417

:
0554 4172

Accessories

testo 318 - Endoscope

:
0563 3185

Accessories

IAQ data logger for long-term measurements

:
0577 0400

Accessories for measuring instrument

USB mains unit incl. cable

:
0554 1105

Certificates

ISO luminous intensity calibration certificate; with 5 measuring points: 0 / 500 / 1,000 / 2,000 / 4,000 lx

:
0520 0010

Transport and Protection

Combi-case for testo 440 and multiple probes; for protecting and transporting the testo 440 (dP) air velocity and IAQ measuring instrument and multiple probes

:
0516 4401

Transport and Protection

Service case for volume flow measurement; for protecting and transporting the testo 440 (dP) air velocity and IAQ measuring instrument, probes and accessories for measuring volume flow

:
0516 4900

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).

Measure CO2 concentration for assessing indoor air quality with CO2 probe and testo 440

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.

Determining the degree of turbulence with turbulence probe and testo 440

Convenience and maximum flexibility for duct and outlet measurements

With our large range of air velocity probes (please order separately), you can carry out simple and convenient measurements even at locations that are difficult to access in ventilation ducts or at air outlets:
you will even find it easy to carry out 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 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.

Volumetric flow measurement in ventilation ducts with vane probe (Ø 16 mm) and testo 440

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

Volumetric flow measurement in fume cupboards with fume cupboard probe and testo 440

Data sheet testo 440(pdf, 3.12 MB)
Data sheet testo 440 Lux Kit(pdf, 390.1 kB)

Instruction manual testo 440(pdf, 1.63 MB)
Instruction manual testo Air velocity and IAQ probes with fixed cable(pdf, 432.25 kB)

Firmware update testo 440(v1.0.8, 3.15 MB)
see instruction manual for instructions on how to update your device