The Keyence EH-308 is a shielded cylindrical inductive proximity sensor head designed for stable and precise metal detection in industrial applications. With its compact √∏8 mm body and shielded structure, the EH-308 can be easily integrated into tight machine layouts while maintaining reliable detection performance.

Engineered to detect ferrous metals, the EH-308 achieves a stable sensing range of 0–2 mm and a maximum detection distance of 5 mm when used with a standard target size of 10 × 10 mm (iron, t=1 mm). This balance between compact design and performance makes it ideal for tasks such as part positioning, presence/absence detection, and machine component monitoring. For nonferrous metals, sensitivity will vary, but the sensor maintains reliable functionality across multiple target types.

The sensor’s precision performance is supported by its extremely low hysteresis of 0.04 mm and high repeatability of 0.005 mm. These characteristics are especially important in applications where repeatable accuracy is critical, such as in automated assembly lines, robotic positioning, or fine mechanical inspection. The EH-308 ensures that even minute variations in object placement or size can be consistently detected.

Built for industrial reliability, the EH-308 is housed in a rugged, IP67-rated enclosure. This rating ensures complete protection against dust ingress and resistance to water exposure, making the sensor suitable for harsh environments, including machining, packaging, and material handling. It withstands ambient temperatures ranging from -10 °C to +60 °C, ensuring reliable performance in both standard factory conditions and more demanding setups with temperature fluctuations.

In addition to environmental durability, the EH-308 is designed to handle everyday industrial challenges such as vibration and shock while maintaining stable performance. Its compact cylindrical form allows it to be installed in small or confined spaces, while the shielded design prevents interference from surrounding metal surfaces, improving installation flexibility and accuracy.

With a weight of approximately 47 g (including 3 m cable), the EH-308 is lightweight yet robust enough for long-term industrial use. The pre-attached cable simplifies wiring and setup, reducing installation time while maintaining secure and stable connections.

In summary, the Keyence EH-308 Sensor Head combines compact size, precise repeatability, rugged durability, and versatile integration into a reliable inductive sensing solution. Its ability to provide consistent detection of ferrous metals, even in tough industrial environments, makes it a dependable choice for manufacturers seeking accurate and stable sensor performance in space-constrained applications.