What are the opening hours?

Monday 8:30am - 5pm Tuesday 8:30am - 5pm Wednesday 8:30am - 5pm Thursday 8:30am - 5pm Friday 8:30am - 3:30pm

Testo UK

Name: Testo UK
Address: Newman Lane, Alton, GU342QJ, GB
Telephone: +441420544433

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Testo instruments can be purchased from a wide range of resellers and distributors throughout the UK and Ireland or can be purchased directly from Testo.

Experts in Test and Measurement equipment across an array of applications and industries:

Heating
Refrigeration
Thermal
Climate
Food Safety
Pharmaceuticals

https://www.testo.com/en-UK Testo Ltd is based in Alton, Hampshire and has been operating for over 30 years as the UK subsidiary of Testo AG, selling products throughout the UK and Ireland. We offer an extensive range of instrumentation manufactured to the highest standards that provide our customers with exceptional durability, functionality and ease of use. We also offer instrument service and calibration, on both Testo and non-Testo branded instruments, from our independently accredited ISO 9001:2000 and ISO 17025 laboratory based in Alton, Hampshire. The laboratory’s capabilities include; temperature, pressure, humidity, air velocity and gas analysis. To find out more phone 01420 544 433, extension 504. With a friendly and dedicated team we pride ourselves on offering excellent customer service to all of our customers. Please feel free to contact us on 01420 544 433. Testo Limited on Twitter - https://twitter.com/TestoLimited

Testo Limited Linkedin Page - http://www.linkedin.com/company/testo-limited

Testo Limited Google+ - https://plus.google.com/u/0/b/114076273276670350094/+Testolimited

13/11/2026

🚨 Recent cyber-attacks targeting supermarket refrigeration systems in Europe highlight the risks facing food retailers.

Independent temperature monitoring provides an additional layer of protection, helping businesses detect temperature changes, receive alerts and reduce the risk of costly stock losses.

Find out why independent monitoring matters.
👉 https://www.testo.com/en-UK/know-how/blog/2026-10-19-when-cooling-fails

12/11/2026

Accurate temperature checks, made easy 🌡️✨

The testo 925 Legionella Kit delivers fast, precise water temperature spot checks at outlets, with reliable Type-K thermocouple measurement and min./max. tracking.

👉Find out more: https://www.testo.com/en-UK/testo-925-set/p/300560-9250

11/11/2026

🏠 Thermal imaging can reveal what the naked eye misses in buildings.

Struggling with hidden issues or poor building performance? Testo's free guide, Thermography for Building Contractors, shows you how to put thermal imaging to work.

It helps you spot:
🔍 Heat loss and insulation defects
💧 Moisture, damp and potential mould risks
🌡️ Temperature irregularities and cold spots
🏡 Problems with heating systems, radiators and underfloor heating

Whether you're a contractor, surveyor or maintenance professional, this practical guide will help you get more from your thermal imager.

📥 Download your free guide today: https://www.testo.com/en-UK/downloads/thermal-imager-practical-guide-building-registration

10/11/2026

Fast, precise, and effortless refrigerant charging ⚖️❄️

The testo 560i Refrigerant Scales make weighing refrigerant simple on every job. Get accurate measurements in seconds with seamless app connectivity and a compact, job-ready design built for HVAC professionals.

Measure smarter. Work faster. Stay precise.https://www.testo.com/en-UK/testo-560i/p/0564-1560

09/11/2026

☁️ Considering a cloud-based Environmental Monitoring System

Hear from industry experts as they discuss:
🔹 The differences between on-premise, private cloud and SaaS solutions.
🔹 Managing cybersecurity, data integrity and system availability.
🔹 GxP compliance, GAMP and validation requirements.
🔹 Best practices for maintaining compliant and validated systems.

📅 Date: 10 November 2026
⏰ Time: 08:00 AM GMT

Register for free and secure your place:
https://environmental-monitoring-webinar.qualistery.com/?utm_source=Testo

09/11/2026

BIG offers from Testo this heating season🔥

Get 20% off when you buy a testo 300+ or testo 327 & get you 1st year service included for FREE!

Smarter testing starts here:
https://www.testo.com/en-UK/fga-autumn-promo-2026

08/11/2026

Need a simple way to get precise ventilation measurements? 🌬️✨

On World Ventilation Day, we're highlighting the importance of indoor air quality and how proper airflow keeps spaces healthy and efficient. Meet the testo 417 vane anemometer — designed to make measuring air velocity, volume flow, and temperature at grilles and diffusers quick and effortless. 📐💨

Ensure healthier indoor environments and accurate readings every time.

👉https://www.testo.com/en-UK/testo-417-kit-1/p/0563-1417

07/11/2026

🚨 Your essential guide to emissions measurement!

Looking to improve your knowledge of emissions testing and measurement accuracy?

📘 Testo’s free Emissions Technical Guide 2026 covers key topics including test gases, calibration and adjustment, verification intervals, cross-sensitivity and common troubleshooting challenges.

📥 Get your free copy today: https://www.testo.com/en-UK/downloads/emission-calibration-gas-guide-registration

06/11/2026

Control your measurements. Simplify your workflow. Stay one step ahead.

The testo Smart App connects your instruments, documents readings in seconds, and turns complex jobs into smooth, professional reports - all from your phone or tablet. Whether you're commissioning, servicing, or fault-finding, everything is organised, stored, and ready to share.

✔ Fast data logging
✔ Easy report generation
✔ Remote measurement monitoring
✔ Works seamlessly with your compatible Testo tools

Join the community users that have already moved to the SMART way way.

Built by Testo to help you work faster, cleaner, and more confidently on every job.

Ready to upgrade your workflow? Download the testo Smart App today.
🔗https://www.testo.com/en-UK/products/smart-app

06/11/2026

🍟 How well are you managing your cooking oil?

Changing your oil too frequently can increase costs, while leaving it too long can affect food quality.

The testo 270 BT Cooking Oil Tester measures Total Polar Materials (TPM), helping you identify when your oil needs changing. With Bluetooth connectivity and the testo Smart App, you can also document your measurements digitally.

👉 Discover the testo 270 BT: https://www.testo.com/en-UK/testo-270-bt/p/0563-2770

Address

Newman Lane
Alton
GU342QJ

Opening Hours

Monday	8:30am - 5pm
Tuesday	8:30am - 5pm
Wednesday	8:30am - 5pm
Thursday	8:30am - 5pm
Friday	8:30am - 3:30pm

Telephone

+441420544433

Website

http://www.testo.co.uk/

Alerts

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