1/8-27 NPT Male Thread for Seamless Connection: This air pressure switch features a standard 1/8-27 NPT male thread ensuring easy and secure connections to air tanks, train horns, and air ride systems. Perfect for DIY installations or replacements, providing a reliable and leak-proof linkage. Precise Operation: The switch activates when air pressure is below 120 PSI and deactivates once it reaches 150 PSI. Ideal for managing air pressure efficiently in a variety of applications, this feature helps maintain optimal performance of your air systems by avoiding both under and over-pressure scenarios. Adaptable Voltage Compatibility: Designed to work with various voltages, this pressure switch supports DC 12V, 24V, and AC 110V, 120V, 240V systems. It is suitable for various automotive and industrial air pressure systems, ensuring wide application coverage. Diverse Applications: Engineered for versatility, this pressure switch can be used with air compressors, train systems, and tank systems. Whether for automotive enhancements, industrial operations, or marine applications, it provides essential functionality for pressure management. Material: Metal. Package Contents: 2 x Air Pressure Switch. Only the above package content is included; other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to appear slightly different from the real thing. The measurement allows an error of +/- 1-3 cm.