PR12-2DN2光电开关是由韩国品牌奥托尼克斯（Autonics）生产的一款接近开关。奥托尼克斯成立于1977年，是一家专业生产电子电机相关产品的企业。PR12-2DN2采用直流三线式设计，工作电压为12-24VDC，检测距离为2mm。其外壳采用黄铜材质，表面镀镍，具有良好的耐腐蚀性。该产品采用屏蔽型设计，可有效防止电磁干扰，确保检测的准确性。此外，PR12-2DN2还具备内置浪涌保护电路和过电流保护功能，能够有效延长使用寿命。在价格方面，PR12-2DN2在不同采购数量下价格有所不同，例如在e络盟中国，单件价格为233.92元，采购数量越多，单价越低。

The PR12-2DN2 photoelectric switch is produced by Autonics, a South Korean brand established in 1977. It is a type of proximity switch designed with a DC 3-wire configuration and operates within a voltage range of 12-24VDC. The detection distance of this switch is 2mm. The housing of the PR12-2DN2 is made of brass and is nickel-plated, providing excellent corrosion resistance. This switch features a shielded design, which effectively prevents electromagnetic interference and ensures accurate detection. Additionally, the PR12-2DN2 is equipped with built-in surge protection circuits and overcurrent protection functions, which help to extend its service life. In terms of pricing, the cost of the PR12-2DN2 varies depending on the quantity purchased. For example, on element14, the price per unit is 233.92 yuan for a single piece, with the unit price decreasing as the quantity increases.