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Description
SNDWAY SW743A Halogen Gas Detector Automotive Electronic Air Conditioning Refrigerant Freon Maintenance Leak Detector, SW743AFeatures: 1. Fast response, low power consumption, simple detection circuit, good stability, long life 2. Split universal flexible probe, easy to touch all kinds of environment 3. MP 901 sensor, high sensitivity, fast response 4. The heater and metal oxide semiconductor gas sensing layers were fabricated on both sides of the micro AI2O3 ceramic substrate by using a multi layer thick film manufacturing process and encapsulated in a metal shell 5. High
Features:
1. Fast response, low power consumption, simple detection circuit, good stability, long life
2. Split universal flexible probe, easy to touch all kinds of environment
3. MP-901 sensor, high sensitivity, fast response
4. The heater and metal oxide semiconductor gas sensing layers were fabricated on both sides of the micro-AI2O3 ceramic substrate by using a multi-layer thick film manufacturing process and encapsulated in a metal shell
5. High strength ABS engineering plastics, no fear of environmental challenges
6. Adopt air filter to reduce the disturbance of water, air and dust
7. Rich alarm methods (beeping, lighting, vibration) , gas leak real-time feedback
Parameters:
1. Detection gases: CFCs: R11, R12, R500, R503, etc; HCFCs: R22, R123, R124, R502, etc; HCFCs: R134a, R404a, R125, etc.
2. Operating voltage: DC4.5 V
3. Power mode: 3 x AAA alkaline dry cells (not included)
4. Run time: more than 6 hours
5. Display: LCD liquid crystal display with automatic backlighting
6. Direct reading: sensor Concentration Reading, battery charge, concentration unit, temperature
7. Alarm settings: low-alarm function, high-alarm function settings
8. Warm-up time: 30 seconds
9. Response time: less than 10 seconds
10. Measurement range: 0-1000 ppm
11. Resolution: 1 ppm
12. Sampling mode: diffusion mode
13. Alarm: sound, light-emitting diode, vibration indication alarm, voltage under-voltage indication
14. Audio tip: the higher the frequency of beeps, the higher the concentration
15. Service temperature range: -10-50 degrees celsius
16. Size: 156 x 64 x 27mm
17. Weight: about 200g
Applicable to the following gases and occasions:
1. Detection of halogen gases (including chlorine and fluorine)
2. Detecting ethylene oxide and ethanol gas for medical use
3. Detect Halon gas in the fire extinguishing system
4. Testing of air-conditioning, refrigeration systems and refrigerant recovery equipment
Specification:
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Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.7 ★★★★★
Based on 2062 reviews
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Product Reviews
★★★★★ 5
Excellent lumbar support and easy assembly
I bought this chair because of my lower back pain, and it has been very comfortable to use. The leather feels soft, and the lumbar support is excellent. Assembly was easy, and the tools included, especially the screwdriver design were very well thought out, which made the whole setup process much easier.
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Reviewed in the United States on June 2, 2026
★★★★★ 5
Sturdy and comfortable
Color: Black
The chair is easy to install and great quality.
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Reviewed in the United States on June 8, 2026
★★★★★ 5
Very comfortable
Color: Black, Color: Black
Comfortable chair and easy to assemble. The cushioning feels nice and supportive, especially for long sitting sessions. Looks clean and feels sturdy for the price. Definitely worth it.
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Reviewed in the United States on May 25, 2026
★★★★★ 5
Comfort and luxury
Color: Black, Color: Black
Absolutely love this office chair! The comfort and support are excellent, especially during long workdays. The cushioning feels premium, the back support is great, and the adjustable features made it easy to find the perfect sitting position. Assembly was straightforward, and the chair feels sturdy and well-made. The wheels glide smoothly, and the overall design looks modern and professional. Definitely one of the best office chair purchases I’ve made — highly recommend!
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Reviewed in the United States on May 27, 2026
★★★★★ 5
Excellent Comfort and Great Value for a Home Office
Color: Elegant Grey, Color: Elegant Grey
I am extremely happy with this office chair and feel it offers excellent value for the price. The chair was easy to assemble, and all the parts fit together perfectly. Once assembled, it feels sturdy, stable, and well-made.
The high-back design provides outstanding support for my back, neck, and shoulders. The seat cushion is thick and comfortable, making it easy to sit for long periods while working, studying, or gaming. The padded headrest adds extra comfort, and the faux leather material looks stylish and gives the chair a premium appearance.
One of my favorite features is the flip-up armrests. They are comfortable to use and make it easy to slide the chair under my desk when I need extra space. The height adjustment, smooth swivel, and rocking function all work well and allow me to find the perfect sitting position throughout the day.
The chair arrived exactly as described and exceeded my expectations in both comfort and appearance. It looks great in my home office and has made long work sessions much more enjoyable. If you're looking for a comfortable, attractive, and affordable office chair, I highly recommend this product. I would definitely purchase it again and would gladly give it five stars.
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Reviewed in the United States on June 5, 2026