This pressure switch is designed for use in ventilation and air conditioning systems to monitor and control airflow in ducts, filters, dampers, and fans. It is suitable for air and other non-corrosive, non-aggressive gases. The switch responds to small pressure changes and is commonly used for aerator flow control, fan monitoring, and HVAC applications. It can also be used for overheating protection and frost protection in industrial refrigeration systems. The set point is visually adjustable due to its optimized design. Pressure connection: 6.2 mm internal thread tube or G1/8 (optional with pre-drilled hole) Electrical connection: screw terminals; AMP 6.3 mm and AMP 4.8 mm connectors Operating temperature range: –30 °C to +85 °C (maximum overpressure: 5000 Pa) Features: - Quick and easy installation, suitable for both vertical and horizontal mounting - High adjustment accuracy - Stable and reliable operation Compatible media: air, non-corrosive gases Measuring range: 20–200 Pa Accuracy: repeatability < ±1% of full scale Service life: > 1,000,000 switching cycles Color: gray Material: plastic Dimensions: 81 × 53 mm Package includes: 1 × differential pressure switch Note: Color may vary slightly due to lighting and screen settings. Measurement tolerance: ±1–3 cm.