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0563 4402

testo 440 Lux Kit

testo 440 Lux Kit
Measuring illuminance with lux probe and testo 440
The testo 440 Lux Kit is a compact, precise solution for measuring illuminance in workspaces. With standard-compliant accuracy and an intuitive interface, it’s ideal for evaluating lighting conditions across offices, production areas, and more. The included lux probe and multifunctional measuring instrument come neatly packed in a sturdy case for immediate use.
  • Comprehensive IAQ Measurement – Measures all IAQ parameters, including flow velocity, temperature, humidity, pressure, CO2, CO, and more.
  • Accurate Light Measurement – Complies with DIN EN 13032-1 and DIN 5032-7 (class C) for reliable illuminance results.
  • User-Friendly Operation – Intuitive, structured menus simplify measurement workflows and reduce setup time.
  • Smart Data Handling – Stores up to 7500 readings and enables report exports via USB as CSV files for easy analysis.
The testo 440 Lux Kit is designed for professionals who need fast, accurate illuminance measurements in compliance with relevant standards. It includes the testo 440 air velocity and IAQ measuring instrument and a high-precision lux probe, making it suitable for a variety of environments including offices, classrooms, and industrial production areas.

The clearly structured measurement menu enables quick long-term and spot measurements, while the V-lambda curve alignment ensures accurate assessment of all common light sources. Thanks to its compatibility with a wide range of additional probes (via Bluetooth® or cable), the testo 440 can also be expanded to measure parameters like air velocity, temperature, humidity, and CO₂.

Data management is streamlined with onboard memory for up to 7500 readings and a USB interface for exporting reports as CSV files. Whether used for occupational safety assessments or workspace optimisation, this kit delivers convenience and reliability in a portable format.
  • 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

Comfort probes

Food probes

Humidity probes

Pressure probes

Surface probes

Temperature probes

Velocity

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.

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.

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
  • not available

Accessories

Accessories for measuring instrument

Transport and Protection

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Testo Ltd
Newman Lane
GU34 2URAlton
HampshireUnited Kingdom
01420 544433

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