This pressure switch is mainly used in ventilation and air conditioning systems to control the air flow in air ducts, as well as in filters, flaps and fans. They are suitable for air and other non-flammable, non-corrosive gases. The switch is able to sense small pressure changes and is widely used to control aerator flow, monitor fans and air conditioners. It is also suitable for overheat protection and anti-frost protection in industrial refrigeration systems. Due to its excellent design, the set point pressure can be adjusted intuitively Connection: 6.2mm internal threaded pipe or G1/8 (optional if hole) Electrical connection: screw terminal AMP6.3mm connector; AMP4.8mm connector Operating temperature: -30 degrees Celsius 85 degrees Celsius (overpressure 5000 Pa) Quick and easy installation, both vertical and horizontal p Extremely high adjustment accuracy Long life, stable operation Applicable to media: air, non-corrosive gas. Range: 20-200Pa Accuracy: Repeatability <+/- 1% times full scale; Service life: > 106 switching cycles Color: Gray Material: Plastic Size: 81*53mm Package Contents: 1*- Differential pressure switch Only the above package contents, other products are not included. Note: Light and different monitors may cause the color of the item in the picture to be slightly different from the actual item. The measurement allowable error is +/- 1-3cm.