The Lenel LNL-1100-S3 is a significant upgrade over its predecessor, the LNL-1100. One of the key improvements is its enhanced security features, offering better protection against potential breaches and unauthorized access. Additionally, the LNL-1100-S3 boasts improved compatibility with modern technologies and protocols, ensuring seamless integration with other security systems and devices. Overall, upgrading to the LNL-1100-S3 ensures better performance, enhanced security, and future-proofing for your security infrastructure.