The AXIS 4-Channel Main Unit with Audio And I/O is a versatile surveillance camera sensor unit that is perfect for bus and surveillance applications. With its compact design and advanced features this unit is a reliable choice for monitoring and securing your premises. The AXIS brand is known for its high-quality products and this unit is no exception. Manufactured by Axis Communications a trusted name in the industry you can be confident in the performance and durability of this product. The 4-Channel Main Unit with Audio And I/O model F9114 offers seamless integration with your existing surveillance system. Its audio and I/O capabilities allow for enhanced monitoring and control providing you with a comprehensive solution for your security needs. The black casing made of aluminum not only adds a sleek and professional look but also ensures durability and protection against harsh environments. Weighing just 1.49 lb this unit is lightweight and easy to install making it suitable for various applications. Whether you need to monitor a bus fleet or secure your premises the AXIS 4-Channel Main Unit with Audio And I/O is designed to meet your requirements. Its compatibility with other AXIS products allows for easy expansion and customization ensuring a scalable solution for your surveillance needs. Invest in the AXIS 4-Channel Main Unit with Audio And I/O and experience peace of mind knowing that your property is protected. With its advanced features reliable performance and trusted brand this unit is the ideal choice for any surveillance application. Upgrade your security system today and take control of your surroundings with AXIS.