What is the Testo 635-2 Humidity & Temperature Measuring Instrument?
The Testo 635-2 is a professional humidity and temperature measuring instrument designed for HVAC engineers, building services technicians and environmental monitoring specialists across the UK. Built for advanced climate measurement and analysis, it enables accurate testing of air humidity, temperature, dew point, material moisture and pressure conditions across a wide range of applications.
With support for 2 plug-in probes and up to 3 wireless probes, the 635-2 offers flexible measurement across multiple locations, ideal for HVAC commissioning, indoor air quality assessments and industrial process monitoring. Its integrated memory and PC software allow technicians to log, store and document up to 10,000 readings for compliance and reporting.
How does the Testo 635-2 stand out in everyday use?
The 635-2 is built for real-world HVAC and environmental testing. With wireless probe capability up to 20 m, it reduces cable limitations on site, while its intuitive menu system and user profiles streamline complex measurements. Features like dew point calculation, material moisture analysis and U-value measurement make it a versatile solution for diagnostics, compliance and long-term monitoring.
Order today to enjoy free delivery, expert support and our 90-day satisfaction guarantee. Need advice? Our team is here to assist you.
Testo 635-2 humidity and temperature measuring instrument
Batteries
Calibration protocol
PC software
USB cable
Why choose Instrotech for your electrical test equipment?
With over 40 years’ experience supporting UK electricians, technicians and engineers, Instrotech is your trusted partner for quality tools and expert service. When you purchase from us, you benefit from:
Free UK shipping on all orders
Access to our knowledgeable technical support team
Available calibration services to maintain safety compliance
A 90-day money-back guarantee for complete peace of mind
We’re committed to helping you work safely and efficiently with industry-leading products and ongoing support.
