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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!
| Weight | 0.25 kg |
|---|---|
| Dimensions | 15.4 × 6.5 × 3.2 cm |
| testo 440 | The testo 440 air velocity and IAQ measuring instrument, combined with high-precision probes (sold separately), enables accurate measurement and data logging of air velocity, indoor air quality (IAQ), humidity, temperature, CO2, and CO levels. It supports up to three simultaneous probes—Bluetooth, wired, and a temperature probe with a type K thermocouple connector—offering automatic probe detection and intuitive measurement menus for effortless operation. Designed for HVAC professionals, it simplifies tasks such as volume flow measurement, turbulence assessment (EN ISO 7730 / ASHRAE 55), and long-term IAQ monitoring. The Bluetooth handle eliminates cable clutter and enables wireless measurements up to 20 meters, while the device's internal memory stores up to 7500 measurement protocols, exportable via USB. The intelligent calibration system ensures high accuracy by requiring only the probes to be sent for recalibration. With a wide range of probes, including options for cleanrooms, fume cupboards, and laminar flow measurements, the testo 440 is a versatile, professional-grade tool for HVAC technicians, facility managers, and air quality specialists. |
| Probe | The lux probe, designed for use with a compatible testo multifunction measuring instrument (sold separately), accurately measures illuminance in workplaces. It assesses light levels according to the V-lambda curve, matching human eye sensitivity in daylight, and can reliably measure white or warm light LEDs (K < 5000). With a 1.4 m cable, it allows measurements without interference from shadows. The intuitive long-term measurement menu records trends with customizable time and cycle settings. Its intelligent calibration concept ensures precision by requiring only the probe to be sent for calibration, keeping the measuring instrument in continuous use. Ideal for offices, production areas, hospitals, museums, and schools, the lux probe helps verify compliance with lighting standards. It includes a fixed cable and calibration protocol. |
| Measuring range |
0 to 9300 ftc
0 to 100000 Lux
|
|---|---|
| Accuracy |
F1 = 6 % = V(Lambda) adjustment
Class C according to DIN 5032-7
DIN 13032-1 Appendix B
F2 = 5 % = cos-true evaluation
|
| Resolution |
0.1 Lux (< 10000 )
1 Lux (> 10000 )
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| Storage temperature |
-20 to +50 °C
|
|---|---|
| Weight |
110 g
|
| Dimensions |
110 x 55 x 22 mm
|
| Operating temperature |
0 to +50 °C
|
| Cable length |
1.4 m
|
| Product colour |
Black
|
| Measuring range |
-40 to +150 °C
|
|---|---|
| Accuracy |
±0.4 °C (-40 to -25.1 °C)
±0.4 °C (+75 to +99.9 °C)
±0.5 % of mv (Remaining Range)
±0.3 °C (-25 to +74.9 °C)
|
| Resolution |
0.1 °C
|
| Measuring range |
-200 to +1370 °C
|
|---|---|
| Accuracy |
±(0.3 °C + 0.3 % of mv)
|
| Resolution |
0.1 °C
|
| Weight |
250 g
|
|---|---|
| Dimensions |
154 x 65 x 32 mm
|
| Operating temperature |
-20 to +50 °C
|
| Connectable probes |
1 x digital probe with cable or 1 x Temperature NTC TUC, 1 x digital Bluetooth probe or testo Smart Probe, 1 x Temperature TC Type K
|
| Product colour |
black/orange
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| Battery type |
3 AA mignon 1.5 V
|
| Battery life |
12 h (typically vane measurement)
|
| Interface |
Bluetooth®; USB
|
| Storage temperature |
-20 to +50 °C
|
Measuring indoor air quality and comfort level with the testo 440
Volume flow measurement in ducts with the testo 440
