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September 08, 2026 5 min read
Installation and operation manual for the STI 4-Channel Receiver (Model STI-34104).
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.
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.
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.
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.
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.):
This continues until the receiver gets a normal operation message from the sensor, or the sensor is cleared from receiver memory.
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.
| 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. |
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.
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.
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.
| STI-34098 | Single Channel Slave Receiver | STI-34108 | 8-Channel Receiver |
| STI-V34104 | 4-Channel Voice Receiver | STI-34188 | 8-Zone Relay Board |
| STI-34101 | Solar Powered Driveway Monitor Sensor | STI-34151 | Battery Powered Driveway Monitor Sensor |
| 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 |
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
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