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 detects 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 adjusted visually due to its clear design. Pressure connection: 6.2mm internal thread tube or G1/8 (optional if the hole) Electrical connection: screw terminals, AMP6.3mm connector, AMP4.8mm connector Operating temperature: -30°C to 85°C (overpressure up to 5000 Pa) Features: - Quick and easy installation, suitable for both vertical and horizontal mounting - Extremely high adjustment accuracy - Stable operation - Suitable media: air, non-corrosive gases - Range: 20-200Pa - Accuracy: Repeatability < +/- 1% of full scale - Service life: > 1,000,000 switching cycles - Color: Gray - Material: Plastic - Size: 81 x 53 mm Package Contents: 1 x Micro differential pressure switch Note: The package includes only the items listed above. Other accessories are not included. Lighting and display differences may cause slight color variations between the product image and the actual item. Measurement error allowed is +/- 1-3 cm.