一、中文版（约500字）

LJ12A3-2（4）-J/EZ 是一款高性能电感式接近开关，专为工业自动化场景设计。该产品采用先进的电磁感应技术，能够非接触式检测金属物体的存在，适用于机械制造、自动化产线、物流分拣等多种复杂工况环境。

产品特点：

1. 稳定检测性能：有效检测距离为2mm或4mm（具体型号对应不同规格），对铁磁性金属材料具有稳定的检测灵敏度，可适应不同安装环境需求。
2. 抗干扰设计：内置电磁屏蔽结构，有效降低环境中的电磁干扰影响，确保信号传输的可靠性。
3. 环境适应性：防护等级达到IP67，全密封结构设计可抵御油污、粉尘及潮湿环境影响，工作温度范围为-25℃至+70℃。
4. 安装便捷性：圆柱形壳体（直径12mm）配标准M12螺纹安装孔，支持嵌入式或外置式安装，兼容主流工业设备接口。
5. 接线灵活性：提供电缆引出式接线方式，标配1.5米耐弯折电缆，支持DC 10-30V宽电压输入，可选NPN或PNP输出类型。

技术参数：

• 检测物体：铁、钢等磁性金属
• 响应频率：≤100Hz
• 输出电流：≤200mA
• 空载电流：≤10mA
• 状态指示：内置LED工作指示灯

应用领域：

本产品可广泛应用于机床定位、输送带控制、机械臂动作监测、自动化装配设备、包装机械及仓储物流系统等场景。其可靠的性能表现可帮助用户实现精确的位置检测、行程控制及设备安全保护功能。

产品优势：

通过优化电路设计与机械结构，该型号在同类产品中具有更优的性价比。紧凑的外形尺寸（总长50mm）适合空间受限的安装场景，特殊的表面处理工艺增强了产品的耐腐蚀性能，延长了在恶劣工况下的使用寿命。

二、English Version（约450 words）

LJ12A3-2(4)-J/EZ Inductive Proximity Sensor Product Introduction

The LJ12A3-2(4)-J/EZ is a high-performance inductive proximity switch designed for industrial automation applications. Utilizing electromagnetic induction technology, this non-contact sensor reliably detects the presence of metallic objects, making it ideal for manufacturing equipment, automated production lines, and material handling systems.

Key Features:

1. Precision Detection: Offers selectable detection ranges of 2mm or 4mm (model-dependent), maintaining consistent sensitivity for ferrous metals under varying installation conditions.
2. Enhanced Reliability: Incorporates electromagnetic shielding to minimize interference from surrounding equipment, ensuring stable signal transmission.
3. Robust Construction: IP67-rated housing provides protection against dust, moisture, and oil contamination, with operational capability from -25℃ to +70℃.
4. Flexible Installation: 12mm cylindrical housing with M12 threaded mount allows both flush and non-flush mounting configurations.
5. Versatile Connectivity: Features 1.5-meter flexible cable output, compatible with 10-30V DC power supply, available in NPN or PNP output configurations.

Technical Specifications:

• Target Material: Ferrous metals (iron, steel)
• Switching Frequency: Up to 100Hz
• Max. Load Current: 200mA
• Standby Current: <10mA
• Status Indication: Built-in LED operation indicator

Typical Applications:

This sensor excels in position detection for CNC machine tools, conveyor belt monitoring, robotic arm positioning, automated assembly systems, and warehouse automation equipment. Its precise detection capability supports critical functions including object presence verification, movement limitation control, and equipment safety interlocks.

Performance Advantages:

Engineered with optimized circuitry and mechanical structure, this