testo 440 air velocity and IAQ measuring instrument:
 

• No task is too challenging, no application too specific – the testo 440 combines a compact handheld measuring instrument with intuitive measurement menus and a wide selection of air velocity and IAQ probes (probes sold separately)
• Clearly structured measurement menus for long-term measurement – simply enter the measurement time and measuring cycle and record data trends
• Easy storage and evaluation of measurement data – internal memory for up to 7,500 measurement protocols, which can be read via USB port and further processed as a CSV file on the computer (e.g. with Excel)
• Practical rear magnets for secure attachment of the measuring instrument to metal surfaces
• Automatic detection of probes, e.g. CO₂ probe, turbulence probe
• Large, backlit color display

CO₂ probe with Bluetooth and humidity/temperature sensor:
 

• Measure CO₂ concentration, humidity, and air temperature, and calculate dew point, wet bulb temperature, and absolute humidity
• Accurate measurement results, thanks to air density compensation via integrated absolute pressure measurement
• Measuring range: 0 to 10,000 ppm, 14 to 122 °F, and 5 to 95% RH
• The Bluetooth handle makes it more convenient to carry out your measurements and guarantees less cable clutter in your case – it transmits readings to the testo 440, from up to 65 feet away
• Practical button on the handle – for storing individual readings
• Versatile – the universal handle can be connected to all probe heads, so you can take care of more applications, and use less equipment
• Intelligent calibration concept – the testo 440 remains in continuous use, since only the individual probes need calibration

Turbulence probe with air velocity and temperature sensor:
 

• Use the turbulence probe to measure air velocity and air temperature
• Determine the degree of turbulence and draft risk according to EN ISO 7730 / ASHRAE 55
• Accurate measurements from 0 to 984.3 fpm within the temperature range 0 to 122 °F, thanks to air density compensation via integrated absolute pressure measurement
• Use the measuring tripod for easy positioning of the turbulence probe (sold separately)
• Use the fixed cable to connect the turbulence probe to the testo 440

Delivery Scope

• testo 440 air velocity and IAQ measuring instrument, 3 AA batteries, USB cable, and calibration protocol (0560 4401)
• CO₂ probe with Bluetooth and humidity/temperature sensor* (consisting of CO₂ probe head and Bluetooth handle), 4 AA batteries, table stand, and calibration protocol (0632 1551)
• Turbulence probe with fixed cable (length 4.6') and calibration protocol (0628 0152)
• Combi-case for testo 440 and multiple probes (0516 4401)