Based on this product's specifications, here are some alternatives and similar models
External Siren Commax MR-100R/G — wired outdoor alarm siren, model MR-100R/G
Summary description:
Commax MR-100R/G external siren is an outdoor alarm device designed to provide audible and visible signaling for security systems. As a wired external siren, it connects to alarm control panels to emit alert sounds and visual indications when triggered. Suitable for residential or small commercial installations that require a dedicated external alarm unit for intrusion or emergency notification.