HVAC Refrigerant Leak Detector, AC Halogen Leak Detection
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- High-Sensitivity Freon Leak Detector: The GL77A refrigerant leak detector utilizes a premium heat dioxide semiconductor sensor. Boasting a maximum sensitivity of 0.49oz/year (14g/year), it accurately detects a wide range of halogenated refrigerants. Detection for R134a, R1234yf, R410a, R22, R404a, R407c, R454b, R32, and more. (Note: Due to space limitations, the user manual only lists common models, but this device is fully capable of detecting all halogen refrigerants).
- Fast Response with Visual & Audible Alerts: Featuring a 30-second automatic warmup, and built with strong anti-interference technology, the detector delivers error-free, accurate readings even in complex environments. It features a one-button °C/°F switch, automatic power-off, and a simple, intuitive button layout (SEL, APO, °C/°F, Power) for effortless operation. The ergonomic, handheld design ensures comfortable use during long inspection jobs, while the UV light function provides real-time leak visualization for easier leak location.
- High Sensitivity Levels: This HVAC leak detector supports high sensitivity level. It can pinpoint even minor leaks with a probe distance of ≤0.25 inches (0.63 cm) and a moving speed of ≤3 inches/s (75 mm/s). The flexible probe allows for precise detection in hard-to-reach areas, significantly improving troubleshooting efficiency for HVAC and refrigeration systems. Ideal for HVAC maintenance, residential A/C, refrigeration systems, and automotive A/C repair.
- Backlight Display & Smart Features: Designed with a high-brightness LCD screen, the device clearly displays gas concentration, battery status, and alarm indicators for effortless operation. It also includes convenient daily features such as a reset calibration, and auto-power-off.
- Portable HVAC Tool: Powered by 2 x AAA battery(Included). Complete with a user manual, this is a reliable refrigerant leak detection tool for both professional technicians and DIY homeowners.
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Select a product to estimate shipping.Rotary knob to adjust detection sensitivity from low to high, accurately capture tiny refrigerant leaks for different working environments.
Built-in UV light finds invisible leak traces, boosting efficiency for AC & refrigeration equipment.
Real-time digital temperature screen shows ambient temperature, convenient for refrigeration maintenance staff to judge working conditions.
Intelligent battery level reminder, remind you to replace batteries in advance to avoid interruption during maintenance work.
Find Every Leak Fast with Dual-Detection Technology
The GL77A combines a high-sensitivity heated diode sensor with a built-in UV light probe to help you locate refrigerant leaks with confidence. With a 0.5-second response time, real-time PPM readings, and compatibility with R-134a, R-410a, R-22, and more, it's designed for HVAC technicians, automotive AC service, and DIY repairs alike. The flexible 30CM probe reaches tight spaces, while audio-visual alarms keep you informed the moment a leak is detected.
Product details












| Main Specification | |
|---|---|
| Specifieke toepassingen voor producten | Refrigerators or RV AC systems or home air conditioners or automotive cooling systems or HVAC work |
| Inbegrepen componenten | 1 Handleiding or 2 AAA batteries or 1 screwdriver or 1 refrigerant detector |
| Fabrikant | ZLLJYBLG |
| Aantal eenheden | Aantal |
| Item Afmetingen L x B x H | 1.2 x 1.1 x 6.5 inches |
| Merk | ZLLJYBLG |
| Aantal items | 1 |
| Output Type | Digital |
| Sensing Distance | 1 inches |
| Measuring Range | 0-1000PPM |
| Boventemperatuurklasse | 125 °C |
| Materiaal | Kunststof |
| Stijl | Testing and maintenance |
| Product information | |
| Responstijd | 0.5 Seconds |
| Aantal verpakkingen | 1 |
| Technical Details | |
| Deelnummer | GL77A |
| Model | GL77A |
| Materiaaltype | Kunststof |
| Measurement Accuracy | ±1% |
| Style | |
| Stijlnaam | Testing and maintenance |
| Measurements | |
| Item Afmetingen | 1.2 x 1.1 x 6.5 inches |
| Others | |
| Item markeren | Backlit LCD or Freon Sniffer Detecting for R134A R1234YF R22 R410A or High Sensitivity or UV Probe Illumination or Adjustable Alarm |
| Productsoort | Leak Detection Tools |
| Maximale voedingsspanning | 3 volts |












