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  • STI-V34xxx Series — Wireless Alert Series with Voice Receiver Overview

    September 08, 2026 2 min read

    Overview of the STI Wireless Alert Series with Voice Receiver — driveway monitors, mailbox alerts, garage sentry, and motion detectors, all paired with a 4-channel voice receiver.

    Full text manual (for reference)

    The STI Wireless Alert Series with Voice Receiver (STI-V34xxx) pairs a wireless sensor/transmitter with a 4-Channel Voice Receiver that speaks programmable voice alerts when a monitored site is tripped.

    Overview

    The Wireless Alert Series wirelessly monitors up to 4 different STI devices from a single, convenient location. When the included 4-Channel Voice Receiver detects a tripped site, it sounds a programmable voice message identifying which transmitter activated. The receiver offers ten tones/tunes and 53 selectable words (English or Spanish), is supervised for low battery and signal reception, and operates up to 1,000 ft. line-of-sight. Typical uses: open/closed garage door, mail delivery, a car in the driveway, a fence gate, a medicine cabinet, or indoor/outdoor motion.

    How It Works

    Wireless Driveway Monitor — Solar or Battery Powered (STI-V34100 / STI-V34150)

    Detects a vehicle entering or leaving the driveway; movement of any large metallic object near the sensor triggers the receiver.

    Wireless Mailbox Alert (STI-V34200)

    Sounds a voice message when the mailbox door opens.

    Wireless Garage Sentry® Alert (STI-V34300)

    Sounds a voice message when the garage door opens, and reports open/closed status.

    Wireless Universal Alert / Wireless Door Chime (STI-V34400 / STI-V34450)

    Alerts when a monitored site is tripped — medicine cabinet, fence gate, window, shed, etc.

    Wireless Doorbell Button Alert (STI-V34600)

    Water/weather-resistant button, up to 500 ft. line-of-sight range.

    Wireless Motion Detector Alert — Indoor or Outdoor (STI-V34700 / STI-V34760)

    Sends a signal on detected motion; will not re-trigger for three minutes after tripping, to conserve battery.

    Key Features

    • Wirelessly monitor up to 4 devices from one location.
    • Receiver sounds programmable voice messages identifying the tripped transmitter, with four zone light indicators.
    • Latching and auto-restore modes of operation.
    • Supervised battery and signal reception.
    • 433 MHz. Includes battery.
    • Up to 1,000 ft. line-of-sight range (STI-V34600 offers 500 ft.).
    • FCC & IC compliant. 1-year limited warranty against defects in material/workmanship.

    Models Available (Include Voice Receiver)

    Model Description
    STI-V34100 Wireless Driveway Monitor (solar powered)
    STI-V34150 Wireless Driveway Monitor (battery powered)
    STI-V34200 Wireless Mailbox Alert
    STI-V34300 Wireless Garage Sentry® Alert
    STI-V34400 Wireless Universal Alert
    STI-V34450 Wireless Door Chime
    STI-V34600 Wireless Doorbell Button Alert
    STI-V34700 Wireless Indoor Motion Detector Alert
    STI-V34760 Wireless Outdoor Motion Detector Alert
    STI-V6200WIR4 Wireless Fire Extinguisher Theft Stopper®
    STI-V6400WIR4 Wireless Exit Stopper®

    Sensors (Sold Separately)

    STI-34101, STI-34151, STI-34201, STI-34301, STI-34401, STI-34451, STI-34601, STI-34701, STI-34752, STI-6200WIR, STI-6400WIR, STI-6517B.

    Receivers & Accessories

    STI-34098 (Single Channel Slave Receiver), STI-V34104 (4-Channel Voice Receiver), STI-34108 (8-Channel Receiver), STI-30105 (Extended Antenna), STI-34099 (Slave Receiver Case), STI-34105 (Voltamax 12VDC Power Supply), STI-34106 (Key Fob), STI-34109 (Repeater), STI-34188 (8-Zone Relay Board).

    Advanced Voice Messages (English / Spanish)

    The voice receiver supports 53 selectable words including: Alert/Alerta, Barn/Granero, Cabinet/Gabinete, Door/Puerta, Driveway/Entrada, Garage/Gareje, Gate/Entrada, Mailbox/Buzon de Correo, Medicine/Medicina, Motion/Movimiento, Open/Abierta, Window/Ventana, and more — plus 4-note and 8-note chimes.

    Contact

    Safety Technology International, Inc. — 2306 Airport Road, Waterford, Michigan 48327, USA. Toll-free: 1-800-888-4784 (4STI). www.sti-usa.com