Product details
Product Description
ST-VG90 Digital Vacuum Meter | Micron Gauge | HVAC | Super Stars
The ST-VG90 Digital Vacuum Meter by Super Stars is a professional HVAC instrument designed for accurate vacuum measurement during system evacuation. It is essential for ensuring proper removal of moisture and air before refrigerant charging.
This device features a high-precision vacuum sensor with a wide measurement range from 99,999 Pa down to 0.1 Pa (up to 740,000–0.75 microns), making it suitable for deep vacuum applications in refrigeration systems.
Equipped with a clear digital display, multiple unit conversion, and one-key calibration, the ST-VG90 provides fast and reliable readings. It also includes a target vacuum alarm and leak detection function, helping technicians quickly identify system issues and ensure proper evacuation.
Compact, lightweight, and battery-powered, it is ideal for both field and workshop use.
Key Features
- Wide measurement range: 99,999 Pa → 0.1 Pa (micron level)
- High-precision Pirani sensor for accurate readings
- Multi-unit display: Pa, mBar, mmHg, Micron, InHg
- Digital LCD display with backlight
- Leak detection & vacuum monitoring
- Target vacuum alarm with buzzer
- One-key calibration function
- Auto shut-off for battery saving
- Compact and portable design
Technical Specifications
| Specification | Details |
|---|---|
| Model | ST-VG90 |
| Brand | Super Stars |
| Tool Type | Digital Vacuum Meter |
| Measurement Range | 99,999 Pa → 0.1 Pa |
| Micron Range | 740,000 → 0.75 micron |
| Accuracy | ±5% (at 20°C) |
| Resolution | 0.1 Pa (<10 Pa) |
| Units | Pa, mBar, mmHg, Micron, InHg |
| Sensor Type | Pirani sensor |
| Power Supply | 3 × AA batteries |
| Operating Temperature | -5°C to 50°C |
| Interface | 7/16″-20UNF (1/4″ SAE) |
| Weight | approx. 0.4 kg |
Applications
- HVAC system evacuation
- Refrigeration system vacuum testing
- Leak detection in vacuum systems
- Monitoring vacuum level before charging
- Workshop and field servicing
Frequently Asked Questions (FAQs)
Q1: What is ST-VG90 used for?
It measures vacuum level during HVAC system evacuation.
Q2: What is micron measurement?
Micron is a unit used to measure deep vacuum levels in refrigeration systems.
Q3: Does it support multiple units?
Yes, it supports Pa, micron, mBar, mmHg, and more.
Q4: Can it detect leaks?
Yes, it has a vacuum monitoring and leak detection function.
Q5: Is it portable?
Yes, it is compact and battery-powered for field use.
