The principle is that when the concentration of sulfur hexafluoride gas in the air changes, the ionization degree of the mixed gas will vary under the action of a high-frequency electromagnetic field, and the sulfur hexafluoride concentration can be reflected by detecting the ionization degree.

Performance Features
★ The instrument uses a small vacuum pump, and the probe and main unit are separate. The probe features characteristics such as being non-toxic and not producing toxic gases, and has an LCD display for gas concentration.
★ When the measured gas concentration is greater than or equal to the set value, it will automatically emit an alarm sound.

Technical Parameters
☆ Measurement Range: 0.01ppm～500ppm  Response Time: Less than 3 seconds
☆ Indication Method: LCD digital display and audible and visual alarm signals
☆ Alarm Range: 0.01ppm～500ppm
☆ Vacuum Pump: Pumping speed 0.5 liters/second  Pipe length: 4 meters
☆ Operating Time: Continuous operation for no more than 4 hours
☆ Operating Conditions: AC 220V 50Hz  7℃-40℃  ≤85%