Testo · Sonde à fil chaud (numérique)
For measurements in ventilation ducts: use the hot wire probe (with the compatible measuring instrument) to measure air velocity, volume flow, air temperature and humidity.
Category: Measuring instruments · Air velocity probes
| Temperature - NTC | Value |
|---|---|
| Measuring span | -20 to +70 °C |
| Accuracy | ±0.8 °C (-20 to 0 °C) · ±0.5 °C (0 to +70 °C) |
| Resolution | 0.1 °C |
| Humidity – capacitive | Value |
|---|---|
| Measuring span | 5 to 95 %RH |
| Accuracy | Hysteresis: ±1.0 %RH · long-term stability: ±1 %RH / year · ±3 %RH (10 to 35 %RH) · ±0.06 %RH/K (k=1) · ±3 %RH (65 to 90 %RH) · ±2 %RH (35 to 65 %RH) · ±5 (Remaining Range) |
| Resolution | 0.1 %RH |
| Absolute pressure | Value |
|---|---|
| Measuring span | +700 to +1100 hPa |
| Accuracy | ±3.0 hPa |
| Resolution | 0.1 hPa |
| Velocity – hot wire | Value |
|---|---|
| Measuring span | 0 to 30 m/s |
| Accuracy | ±(0.5 m/s + 5 % of mv) · (0 to 20 m/s) · ±(0.03 m/s + 4 % of mv) · (20.01 to 30 m/s) |
| Resolution | 0.01 m/s |
| General technical data | Value |
|---|---|
| Storage temperature | -20 to +60 °C |
| Weight | 405 g |
| Dimensions | 780 x 50 x 40 mm |
| Operating temperature | -5 to +50 °C |
| Cable length | 1.4 m |
| Probe shaft diameter | 9 mm |
| Probe shaft length | 230 mm |
| Telescope length | 1 000 mm |
| Telescope diameter | 16 mm |
| Product colour | black/orange |
Testo · testo 440
Kit for carrying out measurements in laboratories: The testo 440 air velocity & IAQ measuring instrument and the glass-coated, digital laboratory probe (Ø 6 mm) with Pt100 temperature sensor are all safely stowed away in the case. So you can get down to work straight away!
Testo · testo 400
The testo 400 is a universal measuring instrument for all professional HVAC technicians. Measure, analyse and document all parameters relating to air conditioning, ventilation and thermal comfort with a single instrument – simply, conveniently and in compliance with standards. The high quality of the instrument, intuitive measurement assistants, extensive documentation options and a wide choice of climate probes make the testo 400 the perfect partner for your daily work.
Testo · testo 400 Kit de confort thermique avec trépied
Ideal kit for professional HVAC technicians, designed especially for indoor air quality and thermal comfort. You receive the testo 400 universal IAQ and air flow measuring instrument with intuitive measurement menus, a CO2 probe (wired), a turbulence level probe and a Ø 150 mm globe thermometer (both with fixed cable). Use the measuring tripod for standard-compliant positioning of the probes. Long-term measurements of up to 2 weeks can be recorded with the IAQ data logger, even without the IAQ and air flow measuring instrument.
Testo · testo 400 Kit de confort thermique avec trépied
Ideal kit for professional HVAC technicians, designed especially for indoor air quality and thermal comfort. You receive the testo 400 universal IAQ and air flow measuring instrument with intuitive measurement menus, a CO₂ probe (with Bluetooth® handle), a turbulence level probe and a Ø 150 mm globe thermometer (both with fixed cable). Use the measuring tripod for standard-compliant positioning of the probes. Long-term measurements of up to 2 weeks can be recorded with the IAQ data logger, available separately, even without the IAQ and air flow measuring instrument.
Testo · testo 400
Ideal kit for professional HVAC technicians, designed especially for volume flow measurement. You receive the testo 400 universal IAQ and air flow measuring instrument with intuitive measurement menus, a hot-wire probe head (with temperature and humidity sensor), a vane probe head (Ø 100 mm) and a high-precision humidity and temperature probe head – all three mount on the supplied Bluetooth® handle. For measurements on ceiling outlets, simply combine the 100 mm vane probe with the telescope (extendable to 1.0 m) and the 90° elbow.
Testo · testo 400
Ideal kit for IAQ professionals, with a focus on air flow measurement. You will receive the testo 400 universal IAQ measuring instrument with intuitive measurement menus, one hot wire probe head (including temperature and humidity sensor), one vane probe head (Ø 100 mm) and one high-precision humidity/temperature probe head – all three can be attached to the Bluetooth® handle supplied. For measurements at ceiling outlets, simply combine the 100 mm vane probe with the telescope (can be extended up to 1.0 m) and the 90° angle.
Testo · testo 400
Ideal kit for IAQ professionals, with a focus on air flow measurement. You will receive the testo 400 universal IAQ measuring instrument with intuitive measurement menus, one vane probe head (Ø 16 mm), one vane probe head (Ø 100 mm) and one high-precision humidity/temperature probe head – all three can be attached to the Bluetooth® handle supplied. For measurements at ceiling outlets, simply combine the 100 mm vane probe with the telescope (can be extended up to 1.0 m) and the 90° angle.
Testo · testo 400
Ideal kit for professional HVAC technicians, designed especially for volume flow measurement. You receive the testo 400 universal IAQ and air flow measuring instrument with intuitive measurement menus, a vane probe head (Ø 16 mm), a vane probe head (Ø 100 mm) and a high-precision humidity and temperature probe head – all three mount on the supplied Bluetooth® handle. For measurements on ceiling outlets, simply combine the 100 mm vane probe with the telescope (extendable to 1.0 m) and the 90° elbow.
Testo · testo 440
Precise, reliable measurement of all air velocity and IAQ parameters with just one measuring instrument: the multifunction measuring instrument features intuitive operation with clearly structured measurement menus. Adjusting air conditioning and ventilation systems, monitoring air quality or carrying out comfort level measurements – thanks to versatile options for combining with high-quality, digital probes, you are ideally equipped to carry out your measuring task (please order probes separately).
Testo · testo 440
Carry out measurements without any annoying cables: use the kit to handle all relevant measurements in ventilation ducts and at air/ceiling outlets. You will receive the testo 440 dP air velocity and IAQ measuring instrument including differential pressure sensor and the 100 mm vane probe head and hot wire probe head (Ø 9 mm) for attachment to the universal Bluetooth® handle supplied. To make measurements more convenient, both probe heads can be combined with the telescope included in the kit. The equipment can be transported safely and conveniently in the robust case.
Testo · testo 440
Carry out measurements without any annoying cables: use the kit to handle all relevant measurements in ventilation ducts and at air/ceiling outlets. You will receive the testo 440 dP air velocity and IAQ measuring instrument including differential pressure sensor, two vane probe heads (Ø 100 mm and Ø 16 mm) and a humidity/temperature probe head – all three can be attached to the universal Bluetooth® handle supplied. To make measurements more convenient, both vane probe heads can be combined with the telescope included in the kit. The equipment can be transported safely and conveniently in the robust case.
Testo · testo 440 dP
Precise, reliable measurement of all air velocity and IAQ parameters with just one measuring instrument: the multifunction measuring instrument features an integrated differential pressure sensor and intuitive operation with clearly structured measurement menus. Adjusting air conditioning and ventilation systems, monitoring air quality or carrying out comfort level measurements – thanks to versatile options for combining with high-quality, digital probes, you are ideally equipped to carry out your measuring task (please order probes separately).
Testo · testo 440 Kit à fil chaud
Kit for carrying out measurements in ventilation ducts: the testo 440 air velocity and IAQ measuring instrument and the hot wire probe (Ø 9 mm) including temperature sensor are all safely stowed away in the case. So you can get down to work straight away!
Testo · testo 440 Kit à hélice de 100 mm avec Bluetooth®
Kit for carrying out measurements at air outlets: the testo 440 air velocity and IAQ measuring instrument and the vane probe (Ø 100 mm) with Bluetooth® including temperature sensor are all safely stowed away in the case. So you can get down to work straight away!
Testo · testo 440 Kit à hélice de 16 mm
Kit for carrying out measurements in ventilation ducts: the testo 440 air velocity and IAQ measuring instrument and the vane probe (Ø 16 mm) are safely stowed away in the case. So you can get down to work straight away!
Testo · testo 440 Kit combiné 1 avec Bluetooth® pour le débit
Kit for carrying out measurements in ventilation ducts and at air outlets: The testo 440 air velocity and IAQ measuring instrument, the vane probe (Ø 100 mm) with Bluetooth® including temperature sensor and the hot wire probe including temperature sensor are all safely stowed away in the case. So you can get down to work straight away!
Testo · testo 440 Kit combiné 2 avec Bluetooth® pour l’écoulement
Kit for carrying out measurements in ventilation ducts and at air outlets: The testo 440 air velocity and IAQ measuring instrument, the vane probe (Ø 100 mm) with Bluetooth® including temperature sensor and the vane probe (Ø 16 mm) are all safely stowed away in the case. So you can get down to work straight away!
Testo · testo 440
Use this practical Indoor Comfort ComboKit to handle all relevant measurements in order to evaluate the indoor air quality in indoor areas and to determine the draught risk and degree of turbulence in workplaces. The testo 440 air velocity and IAQ measuring instrument, the CO2 probe with Bluetooth® including temperature and humidity sensor and the turbulence probe are all safely stowed away in the case. So you can get down to work straight away!
Testo · testo 440 Kit d’humidité avec Bluetooth®
Kit for carrying out measurements in storage, refrigeration and work rooms, in ventilation ducts and also on refrigeration systems and heat pumps. Keep the testo 440 air velocity and IAQ measuring instrument and the humidity/temperature probe with Bluetooth® safely stowed away in the case. So you can get down to work straight away!
Testo · testo 440 Kit de CO2 avec Bluetooth®
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!
Testo · testo 440 Kit lux
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!
Testo · Sonde à fil chaud (numérique)
For measurements in ventilation ducts: use the hot wire probe (with the compatible measuring instrument) to measure air velocity, volume flow, air temperature and humidity. The readings are transmitted directly to your measuring instrument via Bluetooth, making your measurements particularly convenient.
Testo · Sonde à fil chaud (numérique)
For measurements in ventilation ducts: use the hot wire probe (with the compatible measuring instrument) to measure air velocity, volume flow and air temperature.
Testo · Sonde à fil chaud (Ø 7,5 mm, numérique)
The hot wire probe (in conjunction with the appropriate measuring instrument) is ideal for determining flow velocity and temperature in ventilation ducts or at plate outlets and ventilation grilles.
Testo · Sonde à hélice (Ø 100 mm, numérique)
Use the vane probe to determine air velocity, volume flow and temperature at air outlets, as well as at plate outlets, ventilation grilles or swirl outlets. The readings are transmitted directly to your measuring instrument via Bluetooth, making your measurements particularly convenient.
