The Testo 552 Digital Vacuum Gauge is a high-precision instrument designed for HVAC engineers, refrigeration technicians and heat pump installers who need reliable vacuum measurement during system evacuation.
Engineered for commissioning and servicing refrigeration and air conditioning systems, it measures extremely low absolute pressures to confirm proper dehumidification and removal of contaminants such as moisture, oils and gases. This makes it essential for ensuring system performance and longevity across HVAC installations.
How does the Testo 552 improve evacuation testing on site?
The Testo 552 combines precision measurement with modern connectivity. Using Bluetooth and the testo Smart App, engineers can monitor vacuum levels remotely, log data and generate reports directly from site.
An optical alarm alerts you when vacuum thresholds are reached, while the rugged IP42 design ensures reliable operation in real working environments. With fast measurement updates and high-resolution micron readings, it helps you complete evacuation procedures with confidence and efficiency.
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.
