Détecteur de fuites halogènes SW-743A pour systèmes de chauffage, ventilation et climatisation (CVC) R134a, R22, R410A et R32, détecteur de fuites de gaz haute sensibilité avec alertes sonores et lumi

Features：
High-Sensitivity Leak Identification
Designed 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 Indications
Equipped 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 Backlight
The 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 Performance
Features 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 Design
Compact 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