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. Ideal for DIY installations or replacements, it provides a reliable and leak-proof linkage. Precise Operation: The switch activates when air pressure drops below 120 PSI and deactivates when it reaches 150 PSI. This feature supports efficient pressure management across various applications, helping maintain optimal performance by preventing under and over-pressure conditions. Adaptable Voltage Compatibility: Designed to work with multiple voltage systems, this pressure switch supports DC 12V, 24V, and AC 110V, 120V, 240V. It is suitable for a wide range of automotive and industrial air pressure systems. Diverse Applications: Engineered for versatility, this pressure switch is compatible with air compressors, train systems, and tank systems. It delivers essential pressure control functionality for automotive, industrial, and marine uses. Package Contents: 2 x Air Pressure Switch. Only the items listed are included; other products are not part of the package. Note: Lighting and display differences may cause slight variations between the color shown in the image and the actual product. Measurement may vary by +/- 1-3 cm.