GX-F12B is a rectangular-shaped inductive proximity sensor with amplifier built-in, designed for reliable detection of metallic objects in industrial environments. It features a maximum operation distance of 4.0 mm with a stable sensing range of 0 to 3.3 mm, NPN open-collector transistor output with normally open operation, and a maximum response frequency of 500 Hz. The sensor offers IP68G protective construction for enhanced resistance to water and oil, along with exceptional shock resistance of 1,000 G and vibration resistance up to 500 Hz. Operating within a supply voltage range of 12 to 24 V DC and an ambient temperature range of -25 to +70°C, this sensor is ideal for applications such as compact molding equipment monitoring and part feeder metal detection where stable sensing and durability are essential.