Value VML-2 Digital Refrigerant Leak Detector (HFO / HFC / HCFC / CFC Compatible)

The Value VML-2 digital refrigerant leak detector with a semiconductor sensor is designed to find refrigerant leaks in air conditioning and refrigeration systems with high sensitivity. As the top model of the VML series, it detects all common refrigerant classes including HFO (HFC, HCFC, CFC); it catches even very small leaks such as ≤2 g/year for R-134a in less than 3 seconds, giving technicians and service companies fast and reliable diagnosis in the field.

2 g/year Sensitivity with a Semiconductor Sensor and Leak Detection on All Refrigerants Including HFO

Key Technical Features and Field Advantages

• Wide Refrigerant Compatibility Including HFO: Detects all common HFO, HFC, HCFC and CFC refrigerants (R-134a, R-410A, R-32, R-22, R-1234yf, etc.); can also be used on systems running new-generation refrigerants.
• High Sensitivity (≤2 g/year): Detects even micro leaks of up to 2 grams per year for R-134a — sharper detection than the VML-1.
• Fast Response (≤3 s): Responds in less than 3 seconds depending on the size and distance of the leak; you narrow down the leak point quickly.
• 7-Segment Digital Display (Levels 1-9): Shows the leak concentration numerically in levels from 1 to 9; together with the audible alarm, makes it easier to find the exact location of the leak.
• 43 cm Flexible Probe: The long, flexible probe reaches tight and hard-to-access connection points.
• Automatic Calibration: Adjusts itself to ambient conditions at power-on; makes use and maintenance easier.
• Ergonomic Design: Light (380 g) and balanced body that does not tire you during long field use.

Technical Specifications

• Brand and Model: Value / VML-2
• Sensor Type: Semiconductor
• Detected Refrigerants: HFO, HFC, HCFC, CFC
• Minimum Leak Sensitivity: ≤2 g/year (R-134a)
• Response Time: ≤3 seconds
• Probe Length: 43 cm
• Display: 7-segment digital, sensitivity levels 1-9
• Power: 4 × 1.5V AA alkaline batteries
• Battery Life: 4-6 hours continuous
• Sensor Life: ≥1 year (under normal use)
• Calibration: Automatic
• Weight: 380 g

Why the VML-2 instead of the VML-1?

• The VML-2 is the upgraded model of the VML-1: it adds HFO refrigerant support, improves sensitivity from 3 g/year to 2 g/year and lets you read the leak concentration numerically with a 1-9 level digital display. It is the right choice for service companies working on new-generation R-1234yf/R-32 systems.