Are you conducting air flow, indoor air quality and comfort level measurements?

Whether it's an office, educational institution, industrial or any workplace environment, the testo 440 and testo 400 Air velocity and IAQ instruments take care of the standard-compliant and objective measurement of relevant, air velocity, IAQ and comfort parameters such as PMV and PPD along with draughts and turbulence levels and differential pressure in accordance with EN ISO 7730 and ASHRAE 55.

The IAQ kits from Testo cater for your specific application, whatever IAQ, comfort, air velocity measurement you take. If you are in need of an upgrade or wish to start out in IAQ monitoring, it's a great time to Testo with our special redemption offers below.


testo 440 Air Velocity and IAQ - Kit Specials
Receive a FREE* probe when you purchase one of the following kits:

  • testo 440 - 100mm Vane kit (0563 4403)
  • testo 440 - Indoor Comfort - Combo Kit with Bluetooth (0563 4408)

testo 400 Universial IAQ - Kit Specials
Receive a FREE* Lux Probe / Funnel set (see details below) when you purchase one of the following kits:

  • testo 400 Air flow kit with Hot wire probe (0563 0400 71)
  • testo 400 Air flow kit with 16mm Vane probe (0563 0400 72)
  • testo 400 IAQ and Comfort kit with Tripod (0563 0401)

*Special offer via redemption only. Valid until 31 July 2023

Application video: indoor air quality and comfort level

Airflow and IAQ - testo 440 kits

Air velocity and IAQ instrument testo 440 - 100mm Vane kit

Air velocity and IAQ instrument testo 440 - Indoor Comfort Combo Kit with Bluetooth

Universal Indoor Air Quality (IAQ) instrument kits

Universal IAQ instrument
testo 400 - Hot wire kit

Universal IAQ instrument
testo 400 - 16mm Vane kit

Universal IAQ instrument
testo 400 - IAQ & Comfort Kit

* Kit also includes measuring tripod - to ensure standard compliant positioning of probes.

How to easily redeem your FREE instrument

  1. Register your purchase online by completing the quick form below. Don't forget to upload your Tax Invoice as proof of purchase
  1. If you are a lucky WINNER of the prize draw, just relax and Testo will send you your AWESOME PRIZE.
    Winners will be notified on 15-December 2023.
Relax and receive

You can register here


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Conditions of participation for the
Testo Bonus offer

The following conditions apply to the participation in the Testo Bonus offer ("Promotion").

  1. Organizer

The organizer of the promo is Testo SE & Co. KGaA, Testo-Strasse 1, 79853 Lenzkirch, Germany (“Organizer”). The promo will be handled by Testo Pty Ltd, Unit 11, 114-118 Merrindale Drive, Croydon South VIC 3136, Australia, the agency contracted to do so by the organizer.

  1. Promotional object

The object of the promotion is the granting of a cost-free give away with the purchase of a defined Testo measuring instruments and the subsequent registration with sending in a copy of the invoice receipt or delivery note.

  1. Eligibility for participation

Eligible for participation are natural persons resident in Australia. Employees of the organizer, affiliated companies and other companies involved in the conception and implementation of the promo, as well as their relatives, are excluded from participation. Participation is possible from the age of 18 years.

  1. Participation in the promotion

In order to participate in the promo, the participant must purchase a promotional instrument from a participating distributor or directly at Testo Pty Ltd in Australia, in the period from 1 May 2023 and 31 July 2023, whether in his/her own name or on behalf of a company. The participant must then register here on the Promo page and verify the purchase with a copy of his invoice or delivery note.

After the registration has been checked and confirmed, the give away will be sent to the participant. The customer has the possibility to complete the registration by 30 September 2023.

Each participant can only participate once in the promotion for each purchased promotional device. Multiple participations with different or several address data as well as other manipulative measures lead to the immediate exclusion of the participant from the promotion.

In return for participation in the promotion, the participant agrees that the organizer may process his personal data for advertising purposes (including personal product recommendations).

  1. Give away

After a successful eligibility check, every participant receives a give away in the form a Testo instrument or promotional product. The agency sends the give away to the participant by post. The risk of loss passes to the participant when the item is handed over to a transport person and the participant accepts these conditions of participation. Registered participants who are entitled to participate will generally receive the give away within 30 working days of successful verification of their registration at the specified address. If the give away cannot be delivered twice, the participant may be excluded from the promotion. In the event of unexpectedly high demand, there may be delays in delivery.

A cash payment is excluded. The right to the give away is not transferable.

  1. Liability

The organizer is not liable for any damages which occur in the course of the implementation of the promo, unless the organizer or his/her agent has caused the damage through gross negligence or intention or has violated a contractual (cardinal) obligation. In the case of slight violation of cardinal obligations, the liability of the organizer is limited to predictable, contractually typical damages. Liability in the case of culpable damage to life, body or health due to malicious concealment of defects is unaffected. Liability according to the product liability legislation is unaffected.

  1. Data protection

The data from the participants recorded in the framework of the promotion will be recorded, stored and used for the implementation of the promotion. The complete data protection information for the receipt of application-specific information is contained in the data protection declaration at Privacy Policy

  1. Other

These conditions for participation are subject to Australian law, excluding international private law and the UN Convention on Contracts for the International Sale of Goods.