The Testo 477 LED Stroboscope is a high-performance inspection tool designed for HVAC engineers, maintenance technicians and industrial engineers who need accurate RPM measurement and visual inspection of fast-moving machinery.
Using high-intensity LED flashes, it allows rotating and vibrating components to appear in slow motion, making it ideal for inspecting motors, fans, belts and production equipment without stopping operation. With an extremely wide measurement range up to 300,000 rpm, the Testo 477 is suited to both standard and high-speed industrial applications, helping technicians identify faults quickly and safely.
How does the Testo 477 stand out in everyday use?
The Testo 477 combines powerful performance with rugged usability. Its high light intensity ensures clear visibility even in demanding environments, while long battery life supports extended inspections without interruption.
With trigger input and output for synchronisation, plus a durable IP65-rated housing, it’s built for reliable use in industrial and HVAC environments where fast, accurate diagnostics are essential.
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 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.
