Halogen Leak Finder SW-743A for HVAC Systems R134a R22 R410A R32 High-Sensitivity Gas Leak Finder with Sound Light Alerts LCD Screen
High sensitivity detects halogen gases down to 0.5 oz/year for precise HVAC leak location
Multi-mode alerts with sound light and motion assist in noisy low-visibility environments
Clear LCD screen with backlight shows real-time gas concentration power and temperature
Fast response with 30s warm-up and <10s reaction for quick leak identification
Portable design with 260mm flexible probe and 6+ hours runtime for field inspections
Features:High-Sensitivity Leak IdentificationDesigned to locate halogen-based gases commonly used in HVAC and cooling systems, delivering precise identification with sensitivity down to 0.5 oz/year (14 g/year) for commonly used gases such as R12, R22, and R134a.
Multi-Mode Alert IndicationsEquipped with audible tone indication, bright LED visual indication, and handheld motion alert to assist leak locating in noisy or low-visibility work environments; supports adjustable low and high alert levels.
Clear LCD Screen with BacklightThe LCD screen presents real-time gas concentration (0–1000 PPM), power status, measurement units, and ambient temperature, with automatic backlight for improved visibility in dim spaces.
Fast Response & Stable PerformanceFeatures a short warm-up phase and rapid response, allowing quick identification of gas leakage points. Diffusion-based sampling ensures reliable pinpointing in air conditioning systems, cooling equipment, and vehicle A/C applications.
Portable & Long-Lasting Power DesignCompact handheld structure with a 260mm flexible probe for accessing tight areas. Powered by 3 × AAA dry cells (not included), supporting extended continuous use in field inspections. Suitable for environments from -10°C to 50°C and humidity below 95% RH.
Product Specifications:
Model: SW-743A
Compatible Gases:CFCs (R11, R12, R500, R503, etc.)HCFCs (R22, R123, R124, R502, etc.)HFCs (R134a, R404A, R125, R410A, R32, etc.) and mixed gases
Detection Span: 0–1000 PPM
Resolution: 1 PPM
Sensitivity Level: 0.5 oz/year (14 g/year) for R12 / R22 / R134a
Warm-Up Phase: Approx. 30 seconds
Reaction Speed: Less than 10 seconds
Sampling Method: Diffusion
Power Supply: 3 × AAA alkaline dry cells (not included)
Continuous Usage Duration: Over 6 hours
Display Type: LCD with automatic backlight
Alert Methods: Audible sound, LED light indication, handheld motion alert, low power reminder
Environmental Temperature: -10°C to 50°C
Environmental Humidity: <95% RH (non-condensing)
Probe Length: Approx. 260 mm (flexible)
Product Size: 156 × 64 × 27 mm
Package Contents:
1 × SW-743A Halogen Leak Finder
1 × Instruction Manual
1 × Protective Cloth Bag
1 × Outer Cardboard Box