CO,CO₂,light and sound

Everyone is exposed to different environmental influences in their day-to-day lives. For example, in an average workplace illuminance, sound level, and indoor air quality are all significant factors that influence people's performance and well-being. Testo offers suitable measuring instruments for controlling each of the measurement parameters of lux, sound, and CO2 (for indoor air quality).

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63 products or recommendations for CO
  • testo 417

    testo 417 - Digital 4 inch vane anemometer with App connection

    Order-Nr. 0563 0417

    $ 382.50
    excl. tax
    • Easy, fast and precise measurement of flow, volume flow and temperature at air inlets and outlets
    • Efficient regulation of balanced residential ventilation and fast documentation with the testo Smart App
    Details
  • testo 417 kit 1

    testo 417 kit 1 - Vane anemometer with measurement funnels

    Order-Nr. 0563 1417

    $ 467.50
    excl. tax
    • Easy, fast and precise measurement of flow, volume flow and temperature at air inlets and outlets
    • Efficient regulation of balanced residential ventilation and fast documentation with the testo Smart App
    Details
  • testo 417 kit 2

    testo 417 kit 2 - Vane anemometer with measuring funnels and flow straightener

    Order-Nr. 0563 2417

    $ 561.00
    excl. tax
    • Easy, fast and precise measurement of flow, volume flow and temperature at air inlets and outlets
    • Efficient regulation of balanced residential ventilation and fast documentation with the testo Smart App
    Details
  • testo 425

    testo 425 - Digital hot wire anemometer with App connection

    Order-Nr. 0563 0425

    $ 580.00
    excl. tax
    • Simple, fast and precise flow and temperature measurement plus volume flow calculation in the ventilation duct
    • More flexibility for duct measurements with the cable-connected telescopic probe (maximum length 820 mm)
    Details
  • testo 535

    testo 535 - Digital CO2 measuring instrument with App connection

    Order-Nr. 0563 0535 01

    $ 493.00
    excl. tax
    • Simple, fast and precise measurement of CO₂ concentration
    • Audible alarm sounds if a limit value is exceeded
    Details
  • testo 540

    testo 540 - Light meter

    Order-Nr. 0560 0540

    $ 187.00
    excl. tax
    • For quick and easy measurements in the workplace
    • Sensor based on the spectral sensitivity of the human eye
    Details
  • testo 545

    testo 545 - Digital Lux meter with App connection

    Order-Nr. 0563 1545

    $ 403.75
    excl. tax
    • Simple, fast and precise measurement of illuminance (Lux) according to the V-lambda curve for all common light sources
    • Wide range of applications due to LED compatibility (except single-colour blue LED)
    Details
  • testo 405i German Design Award

    testo 405i - Hot-wire anemometer wireless Smart Probe

    Order-Nr. 0560 1405

    • Measures air velocity, volume flow, and temperature
    • Measures in-duct air flow, and automatically calculates volume flow (simply enter the duct dimensions)
  • testo Smart Probes HVAC/R Ultimate kit

    Order-Nr. 0563 0007

    • For all measurements involving heating, air-conditioning, refrigeration and ventilation systems
    • All Smart Probes for temperature, pressure, humidity and flow in one kit
  • testo 400 Universal IAQ instrument

    testo 400 - Universal Air Flow and IAQ Instrument

    Order-Nr. 0560 0400

    • A measuring instrument for all climate-related parameters
    • Smart, intuitive measurement programs including HVAC grid measurement as per EN ISO 12599 and ASHRAE 111, PMV/PPD and turbulence as per EN ISO 7730 and ASHRAE 55
  • testo 440 Hot Wire Kit

    testo 440 - Hot wire kit (Ø 0.35")

    Order-Nr. 0563 4400

    $ 750.00
    excl. tax
    • A measuring instrument for all climate-related parameters
    • Intuitive: clearly structured measurement menu for volume flow and determination of air velocity in ventilation ducts
    Details
  • testo 440 16 mm Vane Kit

    testo 440 - Vane kit (Ø 0.63")

    Order-Nr. 0563 4401

    $ 795.00
    excl. tax
    • A measuring instrument for all climate-related parameters
    • Intuitive: clearly structured measurement menu for volume flow and determination of air velocity in ventilation ducts
    Details
  • testo 405i

    testo 405 - Pocket-sized thermal anemometer

    Order-Nr. 0560 4053

    $ 182.75
    excl. tax
    • Volume flow calculation of up to 99,990 m3/h
    • Easily read data at any angle with rotating display
    Details
  • testo 440 100 mm Vane Kit with Bluetooth®

    testo 440 - Vane kit with Bluetooth (Ø 3.9")

    Order-Nr. 0563 4403

    $ 995.00
    excl. tax
    • A measuring instrument for all climate-related parameters
    • Intuitive: clearly structured measurement menu for volume flow and parallel determination of air velocity, humidity and temperature in ventilation ducts or at air outlets
    Details
  • testo 440 CO2 Kit with Bluetooth®

    testo 440 - CO2 kit with Bluetooth

    Order-Nr. 0563 4405

    $ 1,095.00
    excl. tax
    • A measuring instrument for all climate-related parameters
    • Intuitive: clearly structured measurement menu for long-term measurement and parallel determination of CO₂ concentration, humidity and air temperature in indoor areas
    Details
  • testo 440 Air Flow ComboKit 1 with Bluetooth®t 1 with Bluetooth

    testo 440 - Air flow ComboKit 1 with Bluetooth

    Order-Nr. 0563 4406

    $ 1,350.00
    excl. tax
    • A measuring instrument for all climate-related parameters
    • Intuitive: clearly structured measurement menu for volume flow and parallel determination of air velocity, humidity and temperature in ventilation ducts or at ventilation outlets
    Details
  • testo 440 Air Flow ComboKit 2 with Bluetooth®

    testo 440 - Air flow ComboKit 2 with Bluetooth

    Order-Nr. 0563 4407

    $ 1,425.00
    excl. tax
    • A measuring instrument for all climate-related parameters
    • Intuitive: clearly structured measurement menu for volume flow and determination of air velocity, humidity and temperature in ventilation ducts or at ventilation outlets
    Details
  • testo 440 Indoor Comfort ComboKit with Bluetooth®

    testo 440 - Indoor comfort ComboKit with Bluetooth

    Order-Nr. 0563 4408

    $ 2,350.00
    excl. tax
    • A measuring instrument for all climate-related parameters
    • Intuitive: clearly structured measurement menu for long-term measurement and parallel determination of CO₂ concentration, humidity, air temperature and degree of turbulence in workplaces
    Details
  • testo 440 Humidity Kit with Bluetooth®

    testo 440 - Humidity kit with Bluetooth (Ø 0.47")

    Order-Nr. 0563 4404

    $ 625.00
    excl. tax
    • A measuring instrument for all climate-related parameters
    • Intuitive: clearly structured measurement menu for long-term measurements as well as the parallel determination of humidity and air temperature in storage, refrigerated and work rooms and also in ventilation ducts
    Details
  • testo 440 Delta P Air Flow ComboKit 1 with Bluetooth®

    testo 440 dP - Air flow ComboKit 1 with Bluetooth and delta P

    Order-Nr. 0563 4409

    $ 2,150.00
    excl. tax
    • A measuring instrument for all climate-related parameters
    • 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
    Details
  • testo 440 Delta P Air Flow ComboKit 2 with Bluetooth®

    testo 440 dP - Air flow ComboKit 2 with Bluetooth and delta P

    Order-Nr. 0563 4410

    $ 2,295.00
    excl. tax
    • A measuring instrument for all climate-related parameters
    • Intuitive: clearly structured measurement menu for volume flow and parallel determination of air velocity, differential pressure, humidity and temperature in ventilation ducts, at ventilation outlets and in work rooms
    Details
  • testo 416

    testo 416 - Digital 0.63 inch vane anemometer with App connection

    Order-Nr. 0563 0416

    $ 531.25
    excl. tax
    • Simple, fast and precise flow measurement and volume flow calculation in the ventilation duct
    • More flexibility for duct measurements with the cable-connected telescopic probe (maximum length 850 mm)
    Details
  • testo 440 dP Air velocity and IAQ measuring instrument including differential pressure sensor

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

    Order-Nr. 0560 4402

    • A measuring instrument for all climate-related parameters
    • Includes a differential pressure sensor: for Pitot tube measurement and monitoring filters
  • testo 410-2 - Vane anemometer with humidity measurement

    Order-Nr. 0560 4102

    • Integrated RH sensor provides %rH, wet bulb, and dew point readings
    • Small 1.5 inch vane meter
63 results found
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