ETI WM40 Wall Mounted Thermometer & Hygrometer (Indoor Use)
Large-Format Temperature and Humidity Monitoring for Commercial Spaces
The WM40 Wall-Mounted Thermometer and Hygrometer is a large-format digital display designed for UK facilities managers, HVAC technicians and building services engineers who need clear, reliable monitoring of temperature and humidity in shared environments.
Ideal for offices, schools, leisure centres and public buildings, the WM40 provides continuous at-a-glance visibility of ambient conditions, helping support comfort control, ventilation management and environmental compliance. The 30 × 280 × 390 mm display ensures readings are easy to see from a distance, making it well suited to wall-mounted installations in busy areas.
With accurate temperature and relative humidity measurement, a wide operating range and a clear LED display, the WM40 is a practical solution for monitoring indoor climate conditions without complex setup or maintenance. A free temperature calibration certificate is included for added confidence in professional environments.
How does the WM40 support everyday environment monitoring?
Its large, easy-to-read display allows technicians and staff to instantly check room temperature and humidity, helping identify ventilation issues and maintain comfortable indoor conditions.
Order today to enjoy free delivery, expert support and our 90-day satisfaction guarantee. Need advice? Our team is here to assist you.
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 orders over £99
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.
