The average New Zealander spends the majority of their day indoors. Whether home, work, or school our lives revolve around indoor environments. It is therefore important to keep these environments comfortable to function in. While people can usually tell the difference between a hot or a cold room, there are many other elements that factor into ...

Accurate vacuum measurement is critical to any HVAC system's diagnostic process. Whether working with refrigeration systems, air conditioning units, or other HVAC instruments, it is essential to maintain the right vacuum level to ensure optimal performance and prevent costly repairs. This is where the Testo 557 Vacuum Probe comes into play. The ...