This pressure switch is designed for use in ventilation and air conditioning systems to monitor and control airflow in ducts, as well as in filters, dampers, and fans. It is suitable for use with air and other non-corrosive, non-aggressive gases.The switch is sensitive to small pressure changes and is widely used for controlling air flow, monitoring fans, and HVAC applications. It can also be used for overheat protection and frost protection in industrial refrigeration systems. The adjustable set point allows for visual calibration due to its clear design.Pressure connection: 6.2mm internal thread tube or G1/8 (optional depending on hole configuration) Electrical connection: Screw terminals with AMP 6.3mm connector or AMP 4.8mm connector Operating temperature: -30°C to 85°C (with overpressure up to 5000 Pa) Features: - Quick and easy installation in both vertical and horizontal orientations - High adjustment accuracy - Stable operation Suitable media: Air, non-corrosive gases Pressure range: 50 to 500 Pa Accuracy: Repeatability up to 106 switching cycles Color: Gray Material: Plastic Dimensions: 81 x 53 mm Package Contents: 1 x Differential pressure switch Note: The package includes only the items listed above. Other products are not included. Lighting and display settings may cause slight variations in the color of the item shown in the image compared to the actual product. Measurement tolerance: ±1–3 cm.