Surf-KM and Aero-K provide secure and reliable fire alarm signal transmission using LTE and IP technologies. Designed to meet the highest industry standards, our communicators successfully passed all requirements for UL and ULC testing and evaluation. The listings are pending final documentation. With advanced monitoring and remote diagnostics, they deliver fast, uninterrupted communication to monitoring centers. Suitable for both residential and commercial fire alarm systems, they are the ideal choice for modern fire protection.