Smart Probes VAC Set
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A. Product Overview
The Testo Smart Probes VAC Set is a compact HVAC measurement kit developed for ventilation and air conditioning engineers. It combines four wireless measuring instruments for performing airflow, humidity, air temperature and surface temperature measurements around ducts, air outlets, ventilation systems and air conditioning equipment.
Instruments Included in the Set
Testo 405i Thermal Anemometer
The Testo 405i is a hot-wire anemometer used for measuring air velocity, volume flow and air temperature inside ventilation ducts. Its telescopic probe extends up to 400 millimetres, making it suitable for measurements inside larger ducts and difficult-to-reach locations.
Testo 410i Vane Anemometer
The Testo 410i is a compact vane anemometer designed for measuring air velocity and volume flow at air outlets, ventilation grilles and diffusers. Its 40 millimetre vane makes it convenient for quick measurements at supply and return air points.
Testo 605i Thermohygrometer
The Testo 605i measures relative humidity and air temperature. It is used for indoor air quality evaluation, ventilation checks, dew point assessment and identification of conditions that may create a risk of mould.
Testo 805i Infrared Thermometer
The Testo 805i measures surface temperature without direct contact. It uses infrared measurement with laser circle marking to help identify the measurement area. It is useful for checking walls, ceilings, ventilation components, equipment surfaces and temperature differences.
The set also includes a Testo Smart Case for convenient storage and transportation.
Main Measuring Parameters
The Smart Probes VAC Set can be used to measure:
- Air velocity
- Volume flow
- Relative humidity
- Air temperature
- Surface temperature
- Duct airflow
- Air outlet airflow
- Temperature differences
- Conditions associated with mould risk
The Testo Smart App displays measurement values as numerical readings, tables or graphs. Reports can also be created with photographs and comments and sent by email.
Key Technical Specifications
Testo 405i Thermal Anemometer
- Sensor type: Hot wire
- Air velocity range: 0 to 30 metres per second
- Temperature range: minus 20 to 60 degrees Celsius
- Air velocity resolution: 0.01 metres per second
- Bluetooth range: Up to 15 metres
- Telescopic probe extension: Up to 400 millimetres
- Approximate battery life: 15 hours
Testo 410i Vane Anemometer
- Sensor type: Vane
- Air velocity range: 0.4 to 30 metres per second
- Temperature range: minus 20 to 60 degrees Celsius
- Air velocity resolution: 0.1 metres per second
- Vane diameter: 40 millimetres
- Bluetooth range: Up to 15 metres
- Approximate battery life: 130 hours
Testo 605i Thermohygrometer
- Sensor type: Capacitive humidity sensor and NTC temperature sensor
- Humidity range: 0 to 100 percent relative humidity
- Temperature range: minus 20 to 60 degrees Celsius
- Humidity resolution: 0.1 percent relative humidity
- Temperature resolution: 0.1 degrees Celsius
- Bluetooth range: Up to 100 metres
- Approximate battery life: 150 hours
Testo 805i Infrared Thermometer
- Sensor type: Infrared
- Temperature range: minus 30 to 250 degrees Celsius
- Temperature resolution: 0.1 degrees Celsius
- Optical ratio: 10:1
- Adjustable emissivity: 0.1 to 1.0
- Bluetooth range: Up to 15 metres
- Approximate battery life: 30 hours
The instruments operate with compatible Android and iOS devices using Bluetooth and the Testo Smart App.
B. Working Principle
The Testo Smart Probes VAC Set uses individual sensors to measure different HVAC and ventilation parameters. Each Smart Probe transmits its readings through Bluetooth to the Testo Smart App installed on a smartphone or tablet.
Air Velocity and Volume Flow Measurement
The Testo 405i uses a heated wire sensor. Moving air cools the sensor, and the instrument converts the cooling effect into an air velocity reading. It is especially suitable for measurements inside ventilation ducts.
The Testo 410i uses a rotating vane. Air passing through the vane causes it to rotate, and the rotational speed is converted into an air velocity value. It is commonly used at ventilation outlets and grilles.
To calculate volume flow, the technician enters the dimensions and geometry of the duct or outlet into the Testo Smart App. The app combines the measured air velocity with the entered cross-sectional area and calculates the volume flow automatically.
Humidity and Air Temperature Measurement
The Testo 605i uses a capacitive humidity sensor to measure the moisture content of the air. It also contains an NTC temperature sensor for air temperature measurement. The app can use these readings to support indoor air quality checks and mould-risk assessment.
Surface Temperature Measurement
The Testo 805i detects infrared radiation emitted from a surface and converts it into a temperature reading. Since it does not require direct contact, it is suitable for rapid measurements on walls, ceilings, ducts, equipment and other surfaces.
All readings can be viewed in real time through the Testo Smart App. The app can connect to and display up to six compatible Testo Smart Probes simultaneously.
C. Why It Is Used
The Testo Smart Probes VAC Set is used to perform multiple ventilation and air conditioning measurements with one portable kit.
HVAC System Commissioning
The set helps technicians confirm whether newly installed ventilation and air conditioning systems are delivering the required airflow, temperature and humidity conditions.
Duct Airflow Measurement
The Testo 405i can measure air velocity inside ducts. The Testo Smart App can calculate volume flow after the duct dimensions and geometry are entered.
Air Outlet Testing
The Testo 410i is suitable for checking airflow at ventilation grilles, supply outlets, return air points and diffusers.
Indoor Humidity Monitoring
The Testo 605i measures relative humidity and air temperature, helping technicians assess indoor comfort, ventilation performance and moisture conditions.
Mould-Risk Identification
The Testo Smart App includes an application-specific menu for identifying possible mould risk. It uses humidity, air temperature and surface temperature measurements to support the assessment.
Non-Contact Surface Temperature Checks
The Testo 805i allows technicians to measure surface temperatures without touching the object. It can be used to check cold spots, overheated surfaces, insulation problems and temperature differences.
Wireless Measurement
The instruments communicate wirelessly with a smartphone or tablet. This allows technicians to read measurements from a convenient position instead of remaining directly beside the measuring point.
Measurement Documentation
The app allows users to create measurement reports, add photographs and comments and send the reports by email. This is useful for commissioning records, customer reports, maintenance documentation and inspection work.
Portable HVAC Testing
All four instruments are supplied in a compact Testo Smart Case, making the set suitable for field service, maintenance visits and regular HVAC inspections.
D. Suitable Buyers
The Testo Smart Probes VAC Set is suitable for:
- HVAC service engineers
- Ventilation system technicians
- Air conditioning contractors
- Building maintenance companies
- Facility management teams
- Indoor air quality professionals
- HVAC commissioning engineers
- Energy auditors
- Mould and moisture inspection professionals
- Cleanroom maintenance teams
- Industrial maintenance departments
- Air balancing technicians
- Building inspection companies
- Mechanical contractors
- HVAC training institutes
- Air conditioning equipment dealers
- Ventilation equipment manufacturers
- Commercial property maintenance teams
It is especially suitable for professionals who need a portable wireless kit for airflow, humidity, air temperature and surface temperature measurements.
Frequently Asked Questions
1. What is included in the Testo Smart Probes VAC Set?
The set includes the Testo 405i thermal anemometer, Testo 410i vane anemometer, Testo 605i thermohygrometer, Testo 805i infrared thermometer, Testo Smart Case, batteries and calibration protocol.
2. What is the order number of the Testo Smart Probes VAC Set?
The order number is 0563 0003 10.
3. What does VAC mean in this Testo measuring kit?
VAC refers to ventilation and air conditioning applications. The set is designed for measurements around ventilation ducts, air outlets and air conditioning systems.
4. What parameters can the VAC Set measure?
It can measure air velocity, volume flow, relative humidity, air temperature and non-contact surface temperature.
5. Can the set measure airflow inside ventilation ducts?
Yes. The Testo 405i thermal anemometer is designed for measuring air velocity and volume flow inside ventilation ducts.
6. Can it measure airflow at air outlets?
Yes. The Testo 410i vane anemometer is suitable for measurements at air outlets, ventilation grilles and diffusers.
7. How is volume flow calculated?
The technician measures air velocity and enters the dimensions and geometry of the duct or outlet into the Testo Smart App. The app then calculates the volume flow automatically.
8. What is the air velocity range of the Testo 405i?
The Testo 405i measures air velocity from 0 to 30 metres per second.
9. What is the air velocity range of the Testo 410i?
The Testo 410i measures air velocity from 0.4 to 30 metres per second.
10. What is the humidity range of the Testo 605i?
The Testo 605i measures from 0 to 100 percent relative humidity.
11. What is the surface temperature range of the Testo 805i?
The Testo 805i measures surface temperatures from minus 30 to 250 degrees Celsius.
12. Can the kit identify mould risk?
Yes. The Testo Smart App includes an application-specific function for assessing conditions that may create a risk of mould.
13. Does the Testo 805i require contact with the surface?
No. It is an infrared thermometer that measures surface temperature without physical contact.
14. Does the kit require a separate display instrument?
No. A compatible smartphone or tablet acts as the display through the Testo Smart App.
15. How many Smart Probes can be displayed in the app?
The Testo Smart App can display readings from up to six compatible Testo Smart Probes simultaneously.
16. Can measurement reports be created?
Yes. The app can create reports containing measurement values, photographs and comments. Reports can then be sent by email.
17. Is the Testo Smart Probes VAC Set suitable for HVAC commissioning?
Yes. It is suitable for commissioning, maintenance, inspection and troubleshooting of ventilation and air conditioning systems.
18. Is the Testo 405i suitable for deep duct measurements?
Yes. Its telescopic probe can be extended up to 400 millimetres for measurements inside ventilation ducts.
19. What is the Bluetooth range of the Testo 605i?
The Testo 605i provides a Bluetooth range of up to 100 metres under suitable operating conditions.
20. Is the VAC Set suitable for professional use?
Yes. It is designed for professional HVAC engineers, ventilation technicians, facility maintenance teams, air balancing professionals and building inspection specialists.