Description
The AS5750L Refrigerant Leak Detector is designed to help HVAC technicians, refrigeration contractors, facility maintenance teams, and service engineers quickly identify refrigerant leaks in air-conditioning and refrigeration systems.
Using a highly sensitive sensor, the detector responds to halogen-based refrigerants commonly found in commercial and residential cooling equipment. The instrument can detect refrigerant leakage rates below 0.5 oz/year, allowing users to locate even small leaks before they develop into major system failures.
Its flexible stainless steel probe makes it easy to inspect confined spaces, evaporator coils, condensers, pipe joints, fittings, valves, and other difficult-to-access locations where refrigerant leaks frequently occur.
Detects Common Refrigerants
The AS5750L responds to a wide range of halogenated refrigerants, including:
- CFC Refrigerants (R11, R12, R500, R503 and similar)
- HCFC Refrigerants (R22, R123, R124, R502 and similar)
- HFC Refrigerants (R134a, R404A, R125 and similar)
This makes the detector suitable for servicing various air-conditioning, refrigeration, cold storage, and cooling systems.
Designed for Field Service Applications
The detector features an adjustable sensitivity control that allows users to optimise leak detection performance based on the environment and leak size. LED indicators provide a visual representation of leak intensity, while the audible alarm increases in frequency as the probe approaches the leak source.
With a rapid warm-up time of less than 20 seconds and up to 9 hours of continuous operation, the AS5750L is well suited for daily field service work.
Key Applications
- Air-conditioning system maintenance
- HVAC servicing and troubleshooting
- Refrigeration system leak detection
- Cold room and cold storage inspection
- Refrigerant recovery equipment maintenance
- Commercial cooling system servicing
- Facility maintenance and building services
- Leak detection around compressors, valves and pipe joints
- Refrigerant storage and recovery container inspection
Why Buy From Us?
- Trusted Measurement Instrument Supplier
We specialise in supplying testing, measuring, and inspection instruments for industrial, commercial, and maintenance applications. - Responsive Technical Support
Need assistance selecting a suitable refrigerant leak detector? Our team can help recommend the right instrument based on your application requirements. - Fast Local Supply
We maintain stock of many popular instruments and strive to provide prompt delivery throughout Singapore and the region. - 90 Days Warranty
The AS5750L Refrigerant Leak Detector is supplied with a 90-day warranty for added peace of mind.
Product Specifications
| Model | AS5750L |
| Product Type | Refrigerant Leak Detector |
| Detectable Gases | All halogen-based refrigerants (CFC, HCFC, HFC) |
| Sensitivity | Less than 0.5 oz/year |
| Response Time | Instantaneous |
| Warm-Up Time | <20 seconds (25°C, 60%RH) |
| Continuous Operating Time | Approximately 9 hours |
| Low Battery Indication | 2.8V ±0.2V |
| Leak Indication | LED Leak Intensity Indicator |
| Alarm Type | Audible Alarm and Visual LED Indication |
| Sensitivity Adjustment | Adjustable |
| Operating Temperature | 0°C to 50°C |
| Operating Humidity | Up to 80%RH (Non-condensing) |
| Power Supply | 3 × 1.5V AA Batteries |
| Dimensions | 67 × 34 × 159 mm |
| Weight | 175 g |
| Warranty | 90 Days |
| Standard Accessories |
AS5750L Refrigerant Leak Detector × 1 Carrying Case × 1 User Manual × 1 |




