Datasheet

testo 440
Digital air velocity probes
Probe type Measuring
range
Accuracy Resolution Order no.
Digital flow probes
Hot wire probe with Bluetooth, incl.
temperature and humidity sensor
Ø16mm
570 to 1000 mm
Ø9mm
0 to 50 m/s
-20 to +70°C
5 to +95%RH
±(0.03 m/s + 4% of m.v.)
(0 to 20 m/s)
±(0.5 m/s + 5% of m.v.)
(20.01 to 30 m/s)
±0.5°C (0 to +70°C)
±0.8°C (-20 to 0°C)
±3.0% RH (10 to 35% RH)
±2.0% RH (35 to 65% RH)
±3.0% RH (65 to 90% RH)
±5% RH (remaining meas.
range)
0.01 m/s
0.1°C
0.1%RH
0635 1571
Hot wire probe, fixed cable, incl.
temperature and humidity sensor
Ø16mm
570 to 1000 mm
Ø9mm
0635 1572
Hot wire probe head, incl.
temperature and humidity sensor
Ø9mm
230 mm
1)
0635 1570
Vane probe (Ø 16 mm) with
Bluetooth, incl. temperature sensor
Ø16mm
Ø16mm
570 to 1000 mm
0.6 to 50 m/s
-10 to +70°C
±(0.2 m/s + 1% of m.v.)
(0.6 to 40 m/s)
±(0.2 m/s + 2% of m.v.)
(40.1 to 50 m/s)
±1.8°C
0.1 m/s
0.1°C
0635 9571
Vane probe (Ø 16 mm), fixed cable,
incl. temperature sensor
Ø16mm
Ø16mm
570 to 1000 mm
0635 9572
Vane probe head (Ø 16 mm), incl.
temperature sensor
230 mm
1)
Ø16mm
0635 9570
Hot wire probe, fixed cable,
incl.temperature sensor
300 to 850 mm
Ø9mm
Ø12mm
0 to 30 m/s
-20 to +70°C
±(0.03 m/s + 4% of m.v.)
(0 to 20 m/s)
±(0.5 m/s + 5% of m.v.)
(20.01 to 30 m/s)
±0.5°C
0.01 m/s
0.1°C
0635 1032
Vane probe (Ø 16 mm) fixed cable
300 to 850 mm
Ø12mm
Ø16mm
0.6 to 50 m/s ±(0.2 m/s + 1% of m.v.)
(0.6 to 40 m/s)
±(0.2 m/s + 2% of m.v.)
(40.1 to 50 m/s)
0.1 m/s
0635 9532
Fume hood probe, fixed cable
Ø10mm
150 mm
0 to 5 m/s
0 to +50°C
±(0.02 m/s + 5% of m.v.)
(0 to 5 m/s)
±0.5°C
0.01 m/s
0.1°C
0635 1052
To measure flows in ducts with a large cross-section, we recommend an extension set (0554 0990).
This enables the telescope to be extended to up to 2 m for all flow probes with an interchangeable handle.
High-precision vane probe (Ø 100
mm) with Bluetooth, including
temperature sensor
Ø
100
mm
0.1 to 15 m/s
-20 to +70°C
±(0.1 m/s + 1.5% of m.v.)
(0.1 to 15 m/s)
±0.5°C
0.01 m/s
0.1°C
0635 9371
High-precision vane probe (Ø 100
mm), fixed cable, incl. temperature
sensor
Ø
100
mm
0635 9372
High-precision vane probe head (Ø
100 mm), incl. temperature sensor
Ø
100
mm
1)
0635 9370
Vane probe (Ø 100 mm) with
Bluetooth, incl. temperature sensor
Ø
100
mm
0.3 to 35 m/s
-20 to +70°C
±(0.1 m/s + 1.5% of m.v.)
(0.3 to 20 m/s)
±(0.2 m/s + 1.5% of m.v.)
(20.01 to 35 m/s)
±0.5°C
0.01 m/s
0.1°C
0635 9431
Vane probe (Ø 100 mm) , fixed cable,
incl. temperature sensor
Ø
100
mm
0635 9432
Vane probe head (Ø 100 mm), incl.
temperature sensor
Ø
100
mm
1)
0635 9430
For convenient ceiling measurements, the telescope with 90° angle (0550 0960) has been developed.
It can simply be fitted to the 100 mm vane probes.
1)
For use with cable handle (order no. 0554 2222)
or Bluetooth handle (order no. 0554 1111) in conjunction with adapter (order no. 0554 2160).