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 system regulation. It can also be applied 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 threaded 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). Installation is quick and flexible—suitable for both vertical and horizontal mounting. Features high adjustment accuracy and stable 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 appearance may vary slightly due to lighting conditions and screen settings. Measurement tolerance: ±1–3 cm.