The STI STI-1230 Stopper II without Horn is a protective cover designed to prevent accidental activation of critical emergency equipment such as fire alarm pull stations. Unlike its horn-equipped counterpart, this model does not include an integrated alarm sounder. Instead, it relies on triggering a connected alarm system when tampered with, providing physical protection without generating an audible alert on its own. Features: 1Tamper-resistant design. Clear, protective cover for emergency equipment. Local or remote alarm triggering capability. Durable construction. Easy installation. Compatible with a range of emergency devices. Suitable for preventing false alarms in various environments.