- 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
What's in the box
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.