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 set point can be visually adjusted due to its unique design. Pressure connection: 6.2mm internal thread tube or G1/8 (optional depending on configuration). Electrical connection: Screw terminals, AMP 6.3mm connector, 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, extremely high adjustment accuracy, stable and reliable operation. Suitable media: Air, non-corrosive gases. Range: 20-200 Pa. Accuracy: Repeatability < +/- 1% of full scale. Service life: > 1,000,000 switching cycles. Color: Gray. Material: Plastic. Dimensions: 81 x 53 mm. Package Contents: 1 x Differential Pressure Switch. Note: Other items not included. Lighting and display settings may cause slight color variations between the image and the actual product. Measurement tolerance: +/- 1-3 cm.