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 helps maintain optimal performance of your air systems 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 various automotive and industrial air pressure applications. Diverse Applications: Engineered for versatility, this pressure switch can be used with air compressors, train systems, and tank setups. It delivers essential pressure management functionality for automotive, industrial, and marine uses. Color: Silver Material: Metal Package Contents: 2 x Air Pressure Switch (only the items listed are included; other products are not included) Note: Light reflection and different displays may cause slight variations in the color of the item shown in the picture compared to the actual product. Measurement may vary by +/- 1-3 cm.