This pressure switch is designed for use in ventilation and air conditioning systems to monitor and control air flow 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 airflow, 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 clear design. Pressure connection: 6.2mm internal thread tube or G1/8 (optional if drilled) Electrical connection: Screw terminals, AMP 6.3mm connector, AMP 4.8mm 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 for media: air, non-corrosive gases - Pressure range: 50–500 Pa - 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: Light and display settings may cause slight color variations between the product image and actual item. Measurement allows an error of ±1–3 cm.