SNDWAY SW743A Halogen Gas Detector Automotive Electronic Air Conditioning Refrigerant Freon Maintenance Leak Detector 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 re