STI ED-50 Rex Plus Electronic Watchdog

Protect your site with a proven acoustic deterrent that adds a visible, audible layer to your security and surveillance strategy. The Safety Technology International STI ED-50 Rex Plus electronic watchdog is a compact sounder that delivers realistic dog barks and rainforest tones to deter burglars and signal intrusions. As an audible alarm device, the ED-50 offers multiple modes—continuous ambient sounds, barking followed by siren, or escalating bark intensity—so you can tailor the response to retail, warehouse, office, or perimeter applications. The unit operates continuously when connected to any standard 110 VAC outlet and measures a compact 6" wide by 5" deep for flexible placement. Easy to install and low maintenance, the Rex Plus complements existing monitoring and access control systems by creating an immediate, attention-grabbing presence that supports faster response and fewer break-ins. Ideal for facilities managers and security integrators seeking an economical, high-impact deterrent, the STI ED-50 enhances intrusion detection and overall surveillance effectiveness. Add the Rex Plus to your security toolkit—order now to strengthen perimeter protection and reduce loss.

• Realistic audible deterrent: simulates barking and rainforest tones to discourage intruders and reduce false alarms
• Continuous 24/7 protection: plugs into any standard 110 VAC outlet for reliable, always-on monitoring
• Flexible alert modes: choose continuous rainforest ambiance, barking-plus-siren annunciation, or escalating bark patterns for customizable response
• Compact, durable design: small footprint (6" W x 5" D) fits on walls or shelves and integrates easily into existing security plans
• Cost-effective perimeter security: provides a high-impact visual/audible presence without the expense and liability of a live guard dog