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  • STI 4-Channel Receiver (STI-34104) — Installation & Operation Manual

    September 08, 2026 5 min read

    Installation and operation manual for the STI 4-Channel Receiver (Model STI-34104).

    Full text manual (for reference)

    Installation and operation manual for the STI 4-Channel Receiver (Model STI-34104) — a wireless alert receiver that monitors up to 4 different STI sensors from a single, convenient location.

    How the Product Works

    STI offers multiple wireless products designed to alert you to different conditions. The 4-Channel Receiver allows you to monitor up to 4 different STI sensors at a single convenient location. The STI wireless alert series uses a system to ensure other non-STI sensors are not enrolled. The 4-Channel Receiver allows you to latch any alert until reset.

    The receiver has an antenna connector, a speaker, green and red LEDs, a receiver button, a transistor output jack, and a power connector — plus an optional STI-30104 Lamp Controller accessory.

    Program a Sensor

    1. Plug the antenna into the antenna (red) connector on the receiver.
    2. Plug the AC adapter into the wall.
    3. While holding down the receiver button, plug the adapter into the 4-Channel Receiver. A series of beeps/tones plays — release the button when the beeps/tones finish. The red and green LEDs flash quickly, indicating the receiver is now in Program Mode. You have 1 minute to program all sensors.
    4. Activate a sensor to program it into the 4-Channel Receiver (refer to the sensor's own instructions). A tone or series of beeps sounds representing the channel the sensor was programmed into (one beep = zone 1, two beeps = zone 2, etc.).
    5. Repeat step 4 for additional sensors.
    6. After programming, wait a minimum of 5 seconds, then press the receiver button to exit Program Mode (or it will exit automatically within one minute).

    Notes

    • Test a sensor by activating it — the receiver should beep once, twice, etc., then make the alert tone. If it doesn't respond correctly, see Troubleshooting.
    • Additional sensors can be programmed without clearing receiver memory, using the "Program a Sensor" steps above.
    • At least 5 seconds is needed after activation before pressing the receiver button for any function.
    • Programmed sensors remain in memory unless the clearing procedure is followed, even if power is lost.
    • Sensor alert status will be lost if the receiver loses power.

    Clearing the Receiver Memory

    1. Disconnect power from the receiver and wait approximately 15 seconds.
    2. Reconnect power — the receiver makes a start-up tone and the green LED becomes solid.
    3. Within 3 seconds, press and hold the receiver button until you hear a series of beeps/tones. When you hear a continuous tone, release the button — the sensors are now cleared.

    Receiver Modes of Operation

    Normal Operating Mode

    When a sensor is activated, short beeps sound just before the alert tone to identify the activated sensor (1 beep = channel 1, 2 beeps = channel 2, etc.), and the red LED flashes to indicate which channel was alerted. The green LED flashes periodically to indicate routine signals are being received — this does not mean a sensor has been activated. If more than 2 sensors activate simultaneously, the receiver gives short beeps for only two of them, though the red LED flashes for all activated channels. Once a sensor returns to normal, press and release the receiver button to reset the red LED.

    Temporary (8-Hour) and Permanent Silent Modes

    These modes can only be entered while the receiver is in Normal Operating Mode. In Permanent Silent Mode, a power outage will not exit the mode — it stays silent until manually exited. In either silent mode, the red LED changes from continuous to flashing when a sensor is activated.

    • Enter Temporary Silent Mode: press and hold the receiver button until you hear a single beep (~3 seconds). Red LED will be solid.
    • Enter Permanent Silent Mode: press and hold the receiver button until you hear two short beeps (~6 seconds). Red LED will be solid.
    • Exit either Silent Mode: press and hold the receiver button until you hear a single beep (~3 seconds) to return to Normal Operating Mode. Red LED turns off.

    Supervisory Signals

    For any of the following conditions, the receiver annunciates once per minute with a number of beeps indicating which sensor has trouble (1 beep for the first sensor, 2 for the second, etc.):

    1. Low battery
    2. Tamper signal received
    3. Out of range (between 12–24 hours)

    This continues until the receiver gets a normal operation message from the sensor, or the sensor is cleared from receiver memory.

    Transistor Output Jack & Optional Lamp Controller

    The transistor output jack can trigger a low-powered accessory such as the STI Lamp Controller (STI-30104). It's a 1/8 inch mono audio plug (negative tip) supplying 75mA at 12VDC for three seconds. The optional Lamp Controller plugs into this jack and turns on a lamp whenever your sensor is triggered, for a selected amount of time.

    Troubleshooting

    Symptom Steps
    Red LED does not stop flashing after pressing the button Check that the sensor is restored to normal.
    Receiver does not power up (green LED off) Check the AC outlet for power; confirm the adapter is plugged into both the receiver and the wall; try another 12V DC 100mA adapter with a +12VDC center and -12VDC outside edge.
    Receiver does not sound when a sensor is activated Check it's not in Temporary/Permanent Silent Mode; move the sensor closer and re-test (a distant/obstructed sensor may need relocation); check/replace sensor batteries; reprogram the receiver via "Clearing the Receiver Memory" and "Program a Sensor."
    Receiver sounds when there should be no alert Check the sensor is mounted correctly per its own instructions; reprogram the receiver; note this may occur from atmospheric conditions (primarily on driveway sensors) due to highly sensitive electronics.
    Receiver gives short beeps See "Supervisory Signals" above.
    Receiver memory will not clear Disconnect power, wait 15 seconds, reconnect, then follow "Clearing the Receiver Memory" again.

    Important Notice / FCC Compliance

    This product has been tested and complies with the specifications for a Class B digital device, pursuant to Part 15 of the FCC Rules, designed to provide reasonable protection against harmful interference in a residential installation. If this equipment causes harmful interference to radio or TV reception (determined by turning the equipment off and on), try: reorienting/relocating the receiving antenna, increasing separation between equipment, connecting to a different outlet, or consulting a dealer/experienced technician.

    Model: 34104 · IC: 6335A-34104 · FCC ID: TXL34104. Changes or modifications not expressly approved by Safety Technology International, Inc. could void the user's authority to operate this equipment.

    Warnings

    For indoor use only. This unit cannot be used with 3-prong grounded plugs. Do not connect the receiver to any heat-producing device. Keep the receiver away from water and/or damp areas. To prevent electric shock, match the wide blade of the plug to the wide slot of the outlet and insert completely. When using the lamp controller option, use only 200-watt or less incandescent lamps, and keep the lamp away from bed coverings, curtains, or other flammable materials to avoid fire hazard.

    Warranty Information

    Safety Technology International, Inc. warrants to the original consumer/purchaser that this product will be free of defects in material and workmanship, under normal use and circumstances, for a period of one (1) year from the original purchase date. Electronic warranty form available at www.sti-usa.com/wc14. Technical support: 800-888-4784.

    Related Wireless Alert Series Products

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    STI-34201 Wireless Mailbox Alert Sensor STI-34301 Wireless Garage Sentry Sensor
    STI-34401 Wireless Universal Alert Sensor STI-34501 Wireless Entry Alert Sensor
    STI-34601 Wireless Doorbell Button STI-34701 Indoor Wireless PIR
    STI-34752 Outdoor Wireless PIR STI-30104 Lamp Controller
    STI-30105 Extended Antenna STI-34105 Voltamax 12VDC (500mA) Power Supply
    STI-34106 Keyfob STI-34109 Repeater

    Manufacturer

    Safety Technology International, Inc. · 2306 Airport Rd, Waterford, MI 48327 · Phone 248-673-9898 · Fax 248-673-1246 · info@sti-usa.com · www.sti-usa.com