• The instruction manual is an integral part of the instrument.
• Please read this instruction manual through carefully and familiarize yourself
with the product before putting it to use.
• Pay particular attention to the safety instructions and warning advice in
order to prevent injury and damage to the product.
• Keep this documentation to hand so that you can refer to it when
necessary.
• Always use the complete original instruction manual.
• Hand this instruction manual on to any subsequent users of the product.
• Only use the product properly, for its intended purpose, and within the
parameters specified in the technical data. Do not apply any force.
• Dangers may also arise from the systems being measured or the measuring
environment: always comply with the locally valid safety regulations when
carrying out measurements.
• Do not carry out any contact measurements on uninsulated, live parts.
• Do not store the product together with solvents. Do not use any desiccants.
• Only carry out maintenance and repair work on this instrument which is
described in the documentation. Follow the prescribed steps exactly when
doing the work. Use only original spare parts from Testo.
• Temperature information given on probes/sensors relates only to the
measuring range of the sensor technology. Do not expose handles and feed
lines to temperatures in excess of 50°C (122°F), unless they are expressly
authorized for use at higher temperatures.
• Do not operate the instrument if there are signs of damage on the housing
or supply lines.
1 Safety and disposal
• Improper use of batteries may cause destruction of the batteries, injuries
due to current surges, fire or the escape of chemicals.
• Only use the batteries supplied in accordance with the instructions in the
• Do not expose the batteries to heavy impacts, water, fire or temperatures
above +140 °C or below -20 °C.
• Do not store unused batteries in the proximity of metal objects.
• Do not use any leaky or damaged batteries.
• In the event of contact with battery acid: rinse affected areas thoroughly
with water, and if necessary consult a doctor.
• Dispose of faulty rechargeable batteries and spent batteries in accordance
with the valid legal specifications.
• At the end of its useful life, deliver the product to the separate collection
point for electric and electronic devices (observe local regulations) or returnthe product to Testo for disposal.
You have acquired a probe with Bluetooth®. This probe comprises a handle, a
probe head and, if applicable, additional probe-specific accessories.
The handle can be connected to all the system’s probe heads and
attachments. The graphic below shows what options the system offers.
You will find detailed information about how each of the probes works
along with the testo 440 measuring instrument in the corresponding
chapter of the instruction manual for the measuring instrument.
Low flow velocities may result in greater measurement uncertainties
during temperature and humidity measurement. The probe should be
switched on outside a duct under the following conditions:
Ambient temperature: 20°C
Flow: approx. 0 m/s.
viewed from the handle end, through
90° anticlockwise until it locks in
place.
through 90° until it locks in place.
(pay attention to coding).
adapter (pay attention to the guide
groove and guide pin).
lock in place.
(pay attention to the guide groove
and guide pin).
Push probe head in slightly and turn
to lock in place.
Please do not use the humidity probes in condensing atmospheres.
Bluetooth® handle for connecting testo 440 probe heads (0554 1111)
Technical data
Storage temperature
-10°C to +50°C
Operating temperature
0 to +50°C
Hot wire probe with Bluetooth®, including temperature and humidity sensor
(0635 1571)
700 to 1100 hPa
±3 hPa
• Note for flow probes:
• Note for humidity probes:
Feature Value
7 Technical data
Adjustment in free jet Ø 350 mm, reference pressure 1013 hPa,
based on testo reference Laser Doppler Anemometer (LDA).
Low flow velocities may result in greater measurement
uncertainties during humidity and temperature measurement!
For continuous use in high-humidity ranges
> 80% RH at ≤ 30°C for > 12 h
> 60% RH at > 30°C for > 12 h
please get in touch with Testo Service or contact us via the Testo
website.
Dimensions 170 mm x 50 mm x 40 mm
Warranty Duration: 2 years
Feature Value
Measuring range 0 to +50 m/s
Accuracy
(at 22°C, ±1 digit)
-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)
±0.8°C (-20 to 0°C)
±0.5°C (0 to +70°C)
Please note the following country-specific information for the product
authorization.
The use of the wireless module is subject to the regulations and
stipulations of the respective country of use and the module may only
be used in countries for which a national certification has been
granted. The user and every owner has the obligation to adhere to
these regulations and prerequisites for use and acknowledges that the
re-sale, export, import, etc., in particular in, to or from countries
without wireless authorization, is their responsibility.
Country Comments
Australia
9 Authorisations and certification
E 1561
Canada Product IC ID: 6127B-05541111
Europa + EFTA
Japan
EU countries:
Belgium (BE), Bulgaria (BG), Denmark (DK), Germany (DE), Estonia (EE),
Finland (FI), France (FR), Greece (GR), Ireland (IE), Italy (IT), Latvia (LV),
Lithuania (LT), Luxembourg (LU), M alta (MT), Netherlands (NL), Austria (AT),
Poland (PL), Portugal (PT), Romania (RO), Sweden (SE), Slovakia (SK),
Slovenia (SI), Spain (ES), Czech Republic (CZ), Hungary (HU), United
Kingdom (GB), Republic of Cyprus (CY).
This device complies with Industry Canada licence-exempt RSS standard(s).
Operation is subject to the following two conditions:
(1) this device may not cause interference, and
(2) this device must accept any interference, including interference that may cause undesired
operation of the device.
Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio
exempts de licence.
L'exploitation est autorisée aux deux conditions suivantes :
(1) l'appareil ne doit pas produire de brouillage, et
(2) l'utilisateur de l'appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage
est susceptible d'en compromettre le fonctionnement.
Caution: Radio Frequency Radiation Exposure
This equipment complies with IC radiation exposure limits set forth for an uncontrolled environment
and meets the IC radio frequency (RF) Exposure Guidelines. This equipment should be installed and
operated keeping the radiator at least 20 cm or more away from person´s body in normal use position.
Co-Location:
This transmitter must not be co-located or operated in conjunction with any other antenna or
transmitter.
Attention : exposition au rayonnement de radiofréquences
Cet équipement est conforme aux limites d'exposition aux radiofréquences IC fixées pour un
environnement non contrôlé et aux Lignes directrices relatives à l'exposition aux radiofréquences (RF).
Cet équipement devrait être installé et utilisé à une distance d'au moins 20 cm d'un radiateur ou à une
distance plus grande du corps humain en position normale d'utilisation.
Co-location
Ce transmetteur ne peut pas être installé en colocation ou être utilisé avec une autre antenne ou
transmetteur, quel qu'en soit le type.
Bluetooth range < 20 m (free field)
Bluetooth type L Series BLE module (08 May 2013) based on
Output power 0 dBm
Information from the FCC (Federal Communications Commission)
Shielded cables should be used for a composite interface. This is to ensure continued protection
against radio frequency interference.
This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection
against harmful interference in a residential installation. This equipment generates, uses and can
radiate radio frequency energy and, if not installed and used in accordance with the instructions, may
cause harmful interference to radio communications. However, there is no guarantee that interference
will not occur in a particular installation. If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment off and on, the user is
encouraged to try to correct the interference by one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is
connected.
• Consult the dealer or an experienced radio/TV technician for help.
Changes or modifications not expressly approved by the party responsible for compliance could void
the user's authority to operate the equipment. Shielded interface cable must be used in order to
comply with the emission limits.
This device complies with Part 15 of the FCC Rules.
Operation is subject to the following two conditions:
(1) this device may not cause harmful interference, and
(2) this device must accept any interference received,
including interference that may cause undesired operation.
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment
and meets the FCC radio frequency (RF) Exposure Guidelines. This equipment should be installed and
operated keeping the radiator at least 20 cm or more away from person´s body in normal use position.