This is a genuine OEM Masimo LNCS TC-I reusable ear sensor, model number 1895. It is a brand new product that is perfect for use in medical and lab environments. The sensor is designed to work with Masimo pulse oximeters and is a high-quality product that meets all industry standards for accuracy and reliability. The product is ideal for healthcare, lab, and dental professionals who require accurate and reliable pulse monitoring. It is also suitable for use in business and industrial environments where accurate pulse monitoring is required. The sensor is compatible with a range of Masimo pulse oximeters and is easy to use and maintain.