Usage Tips: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 below 120 PSI and deactivates once it reaches 150 PSI. perfect for managing air pressure efficiently in a of applications, this feature helps in maintaining optimal performance of your air systems by avoiding both under and over-pressure scenarios. Adaptable Voltage Compatibility: Designed to work flawlessly with various voltages, this pressure switch supports DC 12V, 24V, and AC 110V, 120V, 240V systems. It is a versatile tool 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, as well as train and tank systems. Whether it's for automotive enhancements, industrial operations, or marine applications, it provides essential functionality for pressure management. Sticker styles are random, don't accept the specified Colour:Silver Material:Metal Package Contents: 2 x Air Pressure Switch Only the above package content, other products are not included. Note: Light reflection 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.