STI 3350 Wireless Doorbell Chime with Receiver

Get dependable, code-ready door notification without the cost or disruption of hardwiring. The Safety Technology International STI-3350 Wireless Doorbell Chime is a commercial-grade solution for reception areas, clinics, retail entrances and monitored security points. Its plug-in 120V AC receiver and wireless transmitter provide up to 500 feet of line‑of‑sight range, so you can place the button where visitors arrive and the chime where staff will reliably hear it. Choose from 10 selectable melodies and a 64–88 dB output to match ambient noise and critical paging needs.

Built to integrate into professional environments, the STI-3350 is UL/cUL listed and FCC/IC compliant, making it an easy choice for projects that require safety and regulatory confidence. Use it as a door chime for visitor notification, a paging aid for patient or staff monitoring, or a simple add-on to your site’s security and surveillance workflow. Improve response times and front-line communication—order the STI-3350 for quick installation and dependable performance.

• Installs in minutes — no wiring or drilling required; plug-in receiver and door-mounted transmitter get you operational quickly
• Reliable long-range performance up to 500 ft line-of-sight for flexible placement in commercial settings
• Ten selectable tones and 64–88 dB output let you tailor alerts for reception desks, clinics, or patient monitoring
• AC-powered 120V receiver with UL/cUL listing and FCC/IC compliance for code-friendly security deployments
• Dual use as a door chime or personal pager for staff or patients, improving response times and on-site monitoring