中文介绍： PR12-4DN2光电开关是一款由Autonics（奥托尼克斯）公司生产的高品质电感式接近开关。该产品采用圆柱形设计，检测面直径为M12，检测距离为4mm。它属于非屏蔽型（外露型）安装方式，适用于多种工业自动化场景。其工作电压范围为12-24VDC，采用三线制直流供电。PR12-4DN2为NPN常闭型，响应频率高达500Hz。该开关的外壳材质为黄铜（镀镍），防护等级达到IP67，能够在-25~70℃的环境温度和35~95%RH的环境湿度下稳定工作。此外，它还配备红色LED操作指示灯，便于用户直观了解设备运行状态。该产品广泛应用于工业自动化生产线、机械制造、物流设备等领域。

英文介绍： The PR12-4DN2 photoelectric switch is a high-quality inductive proximity switch produced by Autonics. It features a cylindrical design with a sensing face diameter of M12 and a sensing distance of 4mm. This switch is designed for non-flush (exposed) installation and is suitable for a variety of industrial automation applications. It operates on a DC 3-wire system with a voltage range of 12-24VDC. The PR12-4DN2 is an NPN normally closed type with a response frequency of up to 500Hz. The switch is made of brass (nickel-plated) and has an IP67 protection rating. It can operate stably in ambient temperatures ranging from -25 to 70℃ and humidity levels of 35 to 95%RH. Additionally, it is equipped with a red LED operation indicator light, which allows users to easily monitor the device s operating status. The PR12-4DN2 is widely used in industrial automation production lines, machinery manufacturing, logistics equipment, and other fields.

PR12-4DN2光电开关的价格会因市场供需、销售渠道及购买数量等因素而有所波动。据京东平台显示，该产品的价格在一定范围内浮动。建议有购买需求的用户通过正规渠道咨询具体价格，以获取最准确的报价信息。

PR12-4DN2光电开关由Autonics（奥托尼克斯）公司生产。Autonics是一家在自动化领域具有丰富经验的企业，致力于为客户提供高质量的传感器产品。