.This practical oil pressure alarm switch is a common core engine accessory. It keeps detecting engine lubricating oil pressure all the time, and will send out prompt warning signals once pressure is abnormal. It effectively prevents engine abrasion and mechanical faults caused by insufficient oil pressure, ensuring safe driving. Made of high-quality durable materials with tight sealing design, it has stable performance and long service life, perfectly suitable for daily vehicle inspection, maintenance and spare parts replacement work.