Security Brands 50-D909LC AutoSense Controller The Security Brands 50-D909LC AutoSense Controller is the essential control unit for the AutoSense vehicle detection system, designed to work seamlessly with the 50-P75 probe to provide precise, automated gate control. This controller is perfect for customers who already have the probe and need a replacement controller, those who have the probe but didn’t know a controller was needed, or those looking to purchase the probe and controller separately. With adjustable settings, solar compatibility, and simple installation, the 50-D909LC is ideal for reliable, hassle-free vehicle detection in both residential and commercial applications. Key Features Requires 50-P75 Probe for Operation – This controller functions exclusively with the 50-P75 probe (sold separately), ensuring accurate vehicle detection. Adjustable Relay Latch Control – Configurable relay times of 1 or 6 seconds, allowing for tailored gate response times based on detection needs. Solar-Friendly Design – Operates on a low-power 12-24 VDC input, perfect for solar-powered setups. Gain Control Sensitivity Adjustment – Fine-tune detection range with adjustable gain control, ensuring optimized performance. Simple Installation – Includes a mounting plate for easy integration with most gate operators. Built-In Diagnostics – Power LED for operational status and test points for convenient troubleshooting. Technical Specifications Input Voltage: 12–24 VDC Relay Latch Time: 1 or 6 seconds Power Consumption: Low draw suitable for solar applications Operating Temperature: 0 to 120 °F, ensuring reliable performance in diverse climates Conclusion The 50-D909LC AutoSense Controller, paired with the 50-P75 probe, offers an intelligent and energy-efficient solution for automatic gate access control. Whether you’re replacing an existing controller, adding a necessary component to your probe, or starting fresh, the 50-D909LC provides seamless operation with solar compatibility and adjustable detection sensitivity. Its user-friendly setup and built-in diagnostics make it easy to install and maintain, adapting to the unique demands of any property. Download Manual