This Lefoo air compressor pressure switch is a reliable and efficient single port pressure switch designed to regulate the pressure of your compressor. With a pressure setting range of 95-125 PSI, it is suitable for a wide range of applications. The switch is made from high-quality materials and is designed to withstand high temperatures and harsh environments. It is easy to install and use, and is compatible with 1/4" female NPT threads. Please note that this product contains chemicals known to the State of California to cause cancer, and birth defects or other reproductive harm.