Usage Tips:Turn on the air pressure switch if the pressure is below 90psi, turn off reach 120psi Lifespan: 100000 cycles, long life, please email the seller if any problem. 1/4-18 NPT male thread: Single connection air tank/ train/air horn, air pressure switch DC pressure switch: 24v pressure switch, 12v pressure switch, AC 110V 120V 240V air pressure switch. Multipurpose air pressure switch: Such as for air horn/train, air tank pressure switch 1/4" NPT male thread: Quick connection, easy to use and no special need for fixing. 90 PSI ON/120 PSI OFF: The pressure switch automatically turns it on when the pressure is below 90 PSI and turns it off when the pressure reaches 120 PSI. Suitable for DC/AC Power: DC 24v pressure switch, DC 12v pressure switch, AC 110V 120V 240V etc air pressure switch. Versalite Usage: train/horn pressure switch, air tank pressure switch, suspension system air pressure switch etc. Product packaging: 1pc 90-120 PSI air compressor pressure switch. Notice: 1. Due to different monitors and lighting effects, the actual color may be slightly different from the picture. 2. Due to manual measurement, please allow deviation in length. Note: 1. Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. 2. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you! About Shipping: 1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly. 2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. 3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 311 hours Hope you have a pleasant shopping experience!