STI Exit Stopper® Multifunction Door Alarm for Double Door

STI STI-6402 Exit Stopper Multifunction Door Alarm

Overview

The STI STI-6402 is a multifunction door alarm and lock/strike device designed for controlled access and egress monitoring across multiple entry points. This unit combines alarm functionality with strike control, making it suitable for security integrators managing medium-scale door access installations where coordinated monitoring and locking is required.

Specifications

Supports up to 32 doors on a single system. Power supply options include 9 VDC alkaline battery (approximately 2-year battery life at less than 15 microamp draw) or hardwired 12–24 VDC supply for permanent installations. Physical dimensions: 137 mm × 137 mm × 51 mm (5.4" × 5.4" × 2.0").

Compatibility

Integrates into multi-door security architectures where centralized alarm and strike control streamlines installation labor and operational management. Lock/strike topology supports standard door frame mounting configurations typical in commercial and institutional environments.