MS-403 SF6 gas leak detector 

1. Capable of qualitative and quantitative detection of leaks in SF6 electrical equipment.
2. Can accurately locate the leak point of SF6 gas in electrical equipment.
3. Displays multiple parameters on the same screen, including SF6 concentration, temperature and humidity, battery indicator, time, and diaphragm pump status.
4. Utilizes non-dispersive infrared (NDIR) technology with a world-leading, German-made sensor.
5. Fast testing speed; data stabilizes in just 10 seconds with excellent data repeatability.
6. Features temperature and pressure compensation, perfectly compensating for gas concentration under different temperature and pressure conditions.
7. Single-gas response to SF6; does not respond to any other gases, preventing false alarms.
8. Non-contact gas measurement ensures that sensor poisoning does not occur at any concentration.
9. The sensor's constant temperature chamber ensures that the sensor does not experience temperature drift at any ambient temperature.
10. Adhering to the European design concept of simplicity and low power consumption, and optimized through hardware and software, it features a built-in lithium battery for ultra-long standby time.
11.  Operators can wear the device while performing climbing work during on-site inspections.
12. Improved upon the previous model's drawback of the color screen being difficult to see in sunlight, making it more suitable for field personnel.
13. Segmented audible and visual alarms ensure that field operators can detect leak points without needing to constantly monitor the data.

1. Measurement Principle: Non-dispersive infrared, dual-wavelength principle
2. Detection Range: 0-1500 ppm
3. Detection Resolution: 0.1 PPmv
4. Detection Range: 0-1500 PPmv
5. Detection Accuracy: ±2% FS (0-1000 ppm)
6. Repeatability Error: ≤±1%
7. Detection Limit: 0.1 PPmv
8. Detection Response Time: ≤10 seconds
9. Detection Recovery Time: ≤15 seconds
10. Long-term Stability (Span): ≤±20 ppm over a period of 1000 hours
11. Long-term Stability (Zero): ≤±20 ppm over a period of 1000 hours
12. Sampling Method: Pump suction, flow rate up to 1 L/min
13. Zero Drift: ≤±1% (F.S. per year)
14. Linearity Error: ≤±1%
15. Storage Function: Can store 100 sets of data
16. Display Method: 3.5-inch industrial-grade OLED display (data visible under direct sunlight)
17. Charging Method: Fully charged in approximately 3 hours, can be used continuously for more than 6 hours. Also operates normally with external power supply.
18. Peak Current: <700mA
19. Average Power: <2W
20. Operating Air Pressure: 800-1150 hPa