ETI WM20 Wall Mounted Thermometer & Hygrometer (Indoor Use)
Clear Wall-Mounted Temperature and Humidity Monitoring
The ETI WM20 Digital Wall Thermometer and Hygrometer is a compact wall-mounted display designed for UK facilities teams, HVAC technicians and building maintenance engineers who need clear, reliable monitoring of indoor temperature and humidity levels.
Ideal for offices, schools, leisure centres and public buildings, the WM20 provides an easy-to-read digital display that helps maintain comfortable working environments and supports ventilation checks. With a wide measurement range and strong accuracy, it’s a practical solution for everyday environmental monitoring in shared spaces.
Supplied with a FREE traceable calibration certificate for temperature, the WM20 is well suited to compliance-focused environments where dependable readings matter.
How does the WM20 help with daily building monitoring?
It provides a clear, always-visible temperature and humidity display, helping technicians spot ventilation or comfort issues quickly without handheld testing.
Order today to enjoy free delivery, expert support and our 90-day satisfaction guarantee. Need advice? Our team is here to assist you.
Free traceable temperature calibration certificate
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.
