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The testo 435-4 multifunction indoor air quality meter allows you to carry out all the measurements you need to inspect and adjust ventilation and air conditioning systems and to check the quality of the indoor air. There is also an integrated pressure difference sensor for pitot static tube measurements and filter monitoring and a wide range of optionally available sensors and probes to choose from.

• Includes pressure difference sensor for pitot static tube measurements or filter monitoring

• Further sensors optionally available (eg. anemometer, moisture sensors, lux and degree of turbulence sensors) for a variety of different measuring applications

• Super-size memory for up to 10 000 measurements

• PC software for analyzing and logging measuring data

The testo 435-2 indoor air quality meter allows you to carry out all the measurements that are necessary to check and adjust ventilation and air conditioning systems and assess the quality of the indoor air. Select from a wide range of probes and sensors. Because it’s you know best what your meter needs to be able to do!

• Comprehensive range of measuring functions using optionally available accessories – e.g. anemometers, moisture sensors, lux and degree of turbulence sensors

• Super-size memory for up to 10 000 readings

• Displays dew point difference, min, max and mean values

• PC software for analyzing and logging measuring data

Air flow measurements in ducts, temperature measurements in laboratories, humidity measurements in production, pressure difference measurements in clean rooms. The testo 480 digital temperature, humidity and air flow meter comes with a wide range of optional sensors that allow you to measure, analyse and log these and a variety of other parameters with only one device.

• High-quality optional sensors for measuring air flow, temperature, humidity, pressure, degree of turbulence, heat radiation, CO2, illumination intensity, PMV/PPD and WBGT

• High-precision, integrated pressure sensor included

• Pro-software for easy and efficient analysis and logging included

• Intelligent calibration concept

The testo 545 light meter allows you to measure the light intensity at the workplace quickly and easily – and to save the readings for future documentation and analysis.

• Precise light intensity readings in lux

• Large memory for up to 3 000 readings

• Selective or time-based averaging

• Measuring site management with optional software: up to 99 measuring sites available

The testo 540 light meteris a quick and easy-to-use entry level model designed for measuring lighting conditions in the workplace.

• For quick ‘n easy measurements in the workplace

• Sensor is modelled on the spectral sensitivity of the human eye

• Hold function, min/max values

• Protective cap for safe storage

Protect your sensitive and valuable exhibits and archived material with WiFi data logger testo 160 THL. The testo 160 THL climate logger with integrated temperature, humidity, lux and UV sensors ensures comprehensive monitoring of the ambient climate and light conditions in museums at all times.

• With integrated sensors for temperature and humidity, as well as lux and UV radiation

• Blends in perfectly with the surroundings thanks to an optional, customisable deco-cover

• Perfectly networked: data storage in the Testo Cloud, real-time alarm via email or (optionally in conjunction with an Advanced licence) SMS

• Simple to install, integrate and operate

Protect your valuable exhibits and archived material with WiFi data logger testo 160 E, which has connection options for 2 probes, ensuring comprehensive monitoring of the ambient climate and the light conditions in museums, storage depots and archives at all times.

• Connections for 2 probes – position the data logger discreetly in the base of a display cabinet and monitor the micro-climate in the cabinet with the connectable probes

• Blends in perfectly with the surroundings thanks to an optional, customisable deco-cover

• Perfectly networked: data storage in the Testo Cloud, real-time alarm via email or SMS (optional in conjunction with an Advanced licence)

• Simple to install, integrate and operate

Precise, reliable measurement of all air velocity and IAQ parameters with just one measuring instrument: the multifunction measuring instrument features intuitive operation with clearly structured measurement menus. Adjusting air conditioning and ventilation systems, monitoring air quality or carrying out comfort level measurements – thanks to versatile options for combining with high-quality, digital probes, you are ideally equipped to carry out your measuring task (please order probes separately).

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

• Wireless: Bluetooth® probes for extra convenience when measuring and less cable clutter in the measuring case (please order probes separately)

• Clear overview: large graphic display with parallel display of 3 readings

• Safe and reliable: internal data storage and USB port for data export

Precise, reliable measurement of all air velocity and IAQ parameters with just one measuring instrument: the multifunction measuring instrument features an integrated differential pressure sensor and intuitive operation with clearly structured measurement menus. Adjusting air conditioning and ventilation systems, monitoring air quality or carrying out comfort level measurements – thanks to versatile options for combining with high-quality, digital probes, you are ideally equipped to carry out your measuring task (please order probes separately).

• 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

• Wireless: Bluetooth® probes for extra convenience when measuring and less cable clutter in the measuring case (please order probes separately)

• Clear and reliable: large graphic display with parallel display of 3 readings as well as internal data storage and USB port for data export

• Includes a differential pressure sensor: for Pitot tube measurement and monitoring filters

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!

• 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