Testo 440 air velocity and IAQ measuring instrument, 3 x AA batteries, USB cable, Lux probe with fixed cable (cable length 1.4 m) and calibration protocol, Basic case for testo 440 and 1 probe
Testo 440 air velocity and IAQ measuring instrument and a lux probe safely stowed away in the case
Long-term measurement and determination of illuminance according to the V-lambda curve
Standard Compliant accuracy according to DIN EN 13032-1 and class C according to DIN 5032-7
Non Slip probe contact surface for convenient positioning at the measuring location, internal data storage and USB port for data export
Testo 440 Basic Display Unit | |
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General Technical Data | |
Weight | 250 g |
Dimensions | 154 x 65 x 32 mm |
Operating temperature | -20 to +50 °C |
Battery type | 3 AA mignon 1.5 V |
Battery life | 12 h (typically vane measurement) |
Interface | Bluetooth®; USB |
Lux probe (digital) - for measuring illuminance, wired | |
Light | |
Measuring range | 0 to 100000 Lux |
Accuracy | DIN EN 13032-1 Appendix B Class C according to DIN 5032-7 |
Resolution | 0.1 Lux (< 10000 ) 1 Lux (> 10000 ) |
General technical data | |
Storage temperature | -20 to +50 °C |
Cable length | 1.4 m |
Long-term monitoring of indoor air quality
Turbulence measurement in accordance with EN ISO 7730/ASHRAE 55
Convenience and maximum flexibility for duct and outlet measurement
Testo 540 lux meter, protective cap, calibration certificate and batteries
Testo 540 lux meter is a quick and easy-to-use entry level model for measuring lighting conditions in the workplaces.
Quick and easy light measurements
Hold function, min/max values
Protective Cap for safe storage
Light | |
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Measuring range | 0 to 99999 Lux, 0 to 9300 ftc |
Accuracy | ±3 Lux or ±3 % (compared to reference Class B, DIN 5032 Part 7) |
Resolution | 1 Lux (0 to 19999 Lux), 10 Lux (Remaining Range) |
Measuring rate | 0.5 s |
General technical data | |
Operating temperature | 0 to +50 °C |
Storage temperature | -40 to +70 °C |
Protection class | IP40 |
Battery type | 2 AAA micro batteries |
Battery life | 200 h (average, without display illumination) |