Air Differential Pressure Switch 50-500Pa Adjustable Micro- Pressure Air Switch This pressure switch is mainly used in ventilation and air conditioning to control the air flow in the air ducts, as well as in filters, ailerons and fans. They are suitable for air and other non- and non-aggressive gases._x000D_ This switch is capable of feeling a small change of pressure and widely used to control aerator flow, to monitor and fan and air conditioning. 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_x000D_ Pressure connection: 6.2mm Internal thread tube or G1 / 8 (optional if the hole)_x000D_ Electrical connection: screw terminals AMP6.3mm connector; AMP4.8mm connector_x000D_ Operating temperature: -30Celsius 85Celsius (overpressure 5000 Pa)_x000D_ p Installation is quick and easy, both vertical and horizontal p extremely high adjustment accuracy p and stable operation Suitable for medium: air, non- gas. Range: 50500Pa Accuracy : Repeatability 106 switching cycles colour:Gray Material:plastic size:81*53mm Package Contents: 1*- differential pressure switch_x000D_ Only the above package content, other products are not included._x000D_ Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_