Product details
ST-VG90 Digital Vacuum Meter
The ST-VG90 Digital Vacuum Meter is a compact and accurate measuring device designed for HVAC and refrigeration system evacuation. It measures vacuum levels from atmospheric pressure down to deep vacuum conditions, helping technicians ensure proper system evacuation before refrigerant charging. The unit comes in a protective carrying case for easy storage and transport.
Key Benefits
• Accurate vacuum measurement for system evacuation
• Wide measuring range for deep vacuum applications
• Compact and portable design for field technicians
• Clear digital display for easy readings
• Durable protective case for safe transport
• Simple operation with quick connection fittings
Specifications
Model ST-VG90
Product Type Digital vacuum meter
Measurement Range 99999 Pa to 0.1 Pa
Display Type Digital screen
Connection Type Standard HVAC fittings
Power Source Battery operated
Storage Protective zipper carrying case
Brand Super Stars
Applications
• HVAC system evacuation and servicing
• Refrigeration installation and maintenance
• Air-conditioning vacuum testing
• Refrigerant system preparation before charging
• Field service and workshop testing
FAQs
Q1: Why is vacuum measurement important?
Proper vacuum ensures moisture and air are removed before refrigerant charging.
Q2: Is the meter portable?
Yes, it is lightweight and supplied with a carrying case for easy transport.
Q3: Can it be used on all HVAC systems?
Yes, it is suitable for most refrigeration and air-conditioning systems.
Q4: Does it require external power?
No, it operates using internal batteries.








