详细描述：

本产品是一款高品质的兼容替代血氧（SpO₂）传感器，专为 Nonin 系列采用 DB9 7针接口的监护仪及血氧模块设计。采用一体式成人指夹设计，线长 2.8 米，适用于成人患者的无创动脉血氧饱和度（SpO₂）和脉率监测。

核心特点：

1. 精准兼容： 专为 Nonin DB9 7针接口设备量身打造，确保与 Nonin 系列监护仪、手持式血氧仪及模块无缝连接，信号传输稳定可靠。

2. 一体式设计： 传感器与线缆采用一体化注塑成型，无分体接头，有效避免接触不良，延长使用寿命，同时即插即用，无需额外转接线。

3. 成人指夹： 采用人体工学设计的指夹结构，适用于成人手指（通常适用于中指或食指），内置柔性弹簧，夹持力适中，既保证信号稳定又确保患者舒适。指夹内部采用光学屏蔽设计，有效防止环境光干扰。

4. 直连技术： 采用 Nonin 纯模拟信号传输技术，响应速度快，兼容性强，适用于各种临床环境。

5. 耐用可靠： 连接器尾部采用注塑加固工艺，抗拉耐折；指夹线缆出口处强化设计，防止频繁弯折导致内部导线断裂。经过严格的插拔寿命测试和拉力测试，确保长期使用不断裂、不松脱。

6. 广泛兼容： 兼容 Nonin 系列 bedside 监护仪、 handheld 血氧仪及 OEM 模块。

7. Detailed Description：

   This is a high-quality, compatible reusable SpO₂ sensor designed specifically for Nonin series monitors and oximetry modules featuring a DB9 7-pin interface. With an integrated adult finger clip design and 2.8-meter cable length, this sensor is ideal for non-invasive arterial oxygen saturation (SpO₂) and pulse rate monitoring in adult patients.

8. Key Features：

   1. Precise Compatibility： Specifically engineered for Nonin DB9 7-pin interface devices, ensuring seamless connection with Nonin series bedside monitors, handheld pulse oximeters, and OEM modules for stable signal transmission.

   2. Integrated Design： The sensor and cable are molded into one integrated unit, eliminating connection points that can cause signal failure. This plug-and-play design extends product lifespan and requires no additional adapter cables.

   3. Adult Finger Clip： Features an ergonomically designed finger clip suitable for adult fingers (typically middle or index finger). The built-in flexible spring provides optimal clamping force—secure enough for stable signals yet comfortable for prolonged monitoring. Internal optical shielding effectively prevents ambient light interference.

   4. Direct Connect Technology： Utilizes Nonin pure analog signal transmission technology for fast response times and broad compatibility across various clinical environments.

   5. Durable & Reliable： The connector strain relief is reinforced with over-molding for excellent tensile and flex resistance. The finger clip cable exit is reinforced to prevent internal wire breakage from frequent bending. Undergoes rigorous insertion cycle and pull force tests to ensure long-term durability without breakage or loosening.

   6. Broad Compatibility： Compatible with Nonin bedside monitors, handheld oximeters, and OEM modules featuring the DB9 7-pin interface.