

Kit for evaluating the indoor air quality. The testo 440 air velocity and IAQ measuring instrument and the CO2 probe with Bluetooth® including temperature and humidity sensor are all safely stowed away in the case. So you can get down to work straight away!
Temperature - NTC | Measuring range −40 to +150 °C |
|---|---|
Accuracy ±0,4 °C (+75 to +99,9 °C) ±0,4 °C (−40 to −25,1 °C) ±0,5 % of mv (Remaining Range) ±0,3 °C (−25 to +74,9 °C) | |
Resolution 0,1 °C | |
Temperature - TC Type K (NiCr-Ni) | Measuring range −200 to +1370 °C |
|---|---|
Accuracy ±(0,3 °C + 0,3 % of mv) | |
Resolution 0,1 °C | |
General technical data | 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 | |
Battery type 3 AA mignon 1.5 V | |
Battery life 12 h (typically vane measurement) | |
Interface Bluetooth®; USB | |
Storage temperature −20 to +50 °C | |
Temperature - NTC | Measuring range 0 to +50 °C |
|---|---|
Accuracy ±0,5 °C | |
Resolution 0,1 °C | |
Humidity - Capacitive | Measuring range 5 to 95 %RH |
|---|---|
Accuracy ±0,06 %RH/K (0 to +50 °C) long-term stability: ±1 %RH / year ±3 %RH (10 to 35 %RH) Hysteresis: ±1,0 %RH ±3 %RH (65 to 90 %RH) ±5 %RH (Remaining Range) ±2 %RH (35 to 65 %RH) | |
Resolution 0,1 %RH | |
Absolute Pressure | Measuring range +700 to +1100 hPa |
|---|---|
Accuracy ±3,0 hPa | |
Resolution 0,1 hPa | |
Ambient CO₂ | Measuring range 0 to 10000 ppm |
|---|---|
Accuracy ±(100 ppm + 5 % of mv) (5001 to 10000 ) ±(50 ppm + 3 % of mv) (0 to 5000 ) | |
Resolution 1 ppm | |
General technical data | Storage temperature −20 to +60 °C |
|---|---|
Weight 195 g | |
Dimensions 295 x 50 x 40 mm | |
Operating temperature −5 to +50 °C | |
Length probe shaft 130 mm | |
Probe head diameter 30 mm | |
Product colour black/orange | |
Battery life 21,5 h | |
Battery type 4 x type AA batteries | |
Data transfer Bluetooth® | |
Radio range 20 m | |