TX-E121 - Uncategorized Interlogix - Free user manual and instructions
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| Product Type | Wireless transmitter (door/window sensor) |
| Brand | Interlogix |
| Model | TX-E121 |
| Connectivity | Wireless (RF) |
| Frequency | 319.5 MHz |
| Power Source | 3V lithium battery (CR2032) |
| Battery Life | Up to 5 years (typical) |
| Transmission Range | Up to 300 m (open field) |
| Compatible Systems | Interlogix Simon, Concord, and compatible panels |
| Installation | Surface mount using screws or adhesive tape |
| Main Function | Detects opening/closing of protected points and sends alarm signal |
| LED Indicator | Flashes on transmission and low battery |
| Tamper Protection | Anti-tamper switch triggers alarm if cover is removed |
| Operating Temperature | -10°C to +50°C |
| Humidity | Up to 85% non-condensing |
| Dimensions | 28 x 18 x 10 mm (approx.) |
| Weight | 10 g (approx.) |
| Maintenance | Check battery annually; clean exterior with dry cloth |
| Safety | Indoor use only; avoid exposure to moisture |
| Spare Parts | Battery replacement only; otherwise non-serviceable |
| Repairability | No user-serviceable parts; contact dealer for repairs |
| Certifications | FCC, CE, R&TTE |
Frequently Asked Questions - TX-E121 Interlogix
How do I install the Interlogix TX-E121 door/window sensor?
Mount the sensor on the fixed frame and the magnet on the moving part. Use screws or double-sided tape. Ensure the alignment marks are within 1 cm. After installation, test the signal by triggering the magnetic contact.
What type of battery does the TX-E121 use and how do I replace it?
The TX-E121 uses a CR2032 3V lithium battery. Open the cover, remove the old battery, and insert the new one with the correct polarity. Press the tamper switch to reset the device.
What is the transmission range of the TX-E121?
The wireless range is up to 300 meters in open air. Actual range may be reduced by walls, obstacles, and interference.
Does the TX-E121 have a tamper alarm?
Yes, the device includes an anti-tamper switch. If the cover is removed, the device immediately transmits a tamper signal to the control panel.
How can I test the TX-E121 to ensure it works?
Trigger the sensor by separating the magnet from the device. The LED should flash and the control panel should display an alarm. Also check the low battery indicator.
Can I use the TX-E121 outdoors?
No, the TX-E121 is designed for indoor use only. It is not weatherproof and should be installed in dry locations.
How do I pair the TX-E121 with my Interlogix alarm system?
Refer to your control panel's user manual. Typically, put the panel in programming mode, then activate the tamper switch or send a signal by opening the device. The panel will learn the device ID.
What should I do if the TX-E121 stops sending signals?
First, check the battery. If the battery is okay, verify the alignment. Walk around the protected area to test the signal strength. If it still fails, contact your security provider for troubleshooting.
How do I clean the TX-E121?
Use a soft dry cloth to clean the exterior. Do not use water, solvents, or abrasive cleaners, as they may damage the electronics.
Is the TX-E121 repairable if damaged?
The TX-E121 contains no user-serviceable parts. If the device is damaged, it is recommended to replace it with a new one. Contact your dealer for spare parts or a replacement.
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USER MANUAL TX-E121 Interlogix
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Product information
Brand : Interlogix
Model : TX-E121
Category : Uncategorized