Features: The Magnetic Hall sensory Module delivers precise magnetic field detection with Hall, offering output for accurate measurements and double modes to support speed counting. Featuring standardized connectors, this industrial grade module ensures in complex electrical environments while enabling seamless integration with robotics and automation systems. Ideal for electronics hobbyists, automation engineers, and robotics developers seeking a versatile sensory for motor speed monitoring, proximity sensing, or industrial equipment control. Perfect for measuring rotational speeds in detecting magnetic in security systems, or enabling position in printer assemblies. Engineered with high frequency response, this Hall sensory module maintains stability during prolonged operational, making it indispensable for both prototyping and professional application. Specifications: Component:Circuit Board Size:Approx.35.3mm/1.38inch Package Includes: 4Pcs Hall sensory Board note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.