ITEM NAME:Air Differential Pressure Switch 20-200Pa Adjustable Micro- Pressure Air Sw E5K8 Air Differential Pressure Switch 20-200Pa Adjustable Micro- Pressure Air Sw E5K8 This pressure switch is mainly used in ventilation and air.1 Micro- differential pressure switch. Service life : > 106 switching cycles. It is also suitable for protection against overheating and frost protection in the industrial refrigeration system. Due to its exceptional design, the set point can be adjusted visually.