Introduction
This manual provides essential instructions for the safe and effective use of your TECKNET AF-2004 Rechargeable Personal Safety Alarm. Please read this manual thoroughly before using the device and retain it for future reference.
The TECKNET AF-2004 is a compact and portable personal safety device designed to emit a loud siren and a bright strobe light to attract attention and deter potential threats. It features a rechargeable battery and multiple activation methods for user convenience and safety.
Product Overview
Components
- Personal Safety Alarm Unit
- Keychain Attachment
- USB-C Charging Cable
Key Features
- 130dB Siren: Emits a loud, attention-grabbing sound.
- SOS Strobe Light: High-intensity flashing light for visibility and disorientation.
- Rechargeable Battery: Long standby time with USB-C charging.
- Low Battery Indicator: Notifies user when charging is needed.
- Two Activation Modes: Pull-pin and double-press button.
- Compact and Portable: Lightweight design with keychain for easy carrying.


Setup
Initial Charge
Before first use, fully charge your personal safety alarm. Connect the provided USB-C cable to the charging port on the device and plug the other end into a standard USB power adapter (not included) or a computer USB port. The charging indicator light will show the charging status (e.g., red for charging, green for fully charged).
A full charge typically takes approximately 1.5 hours.

Attaching to Keychain
Use the integrated keychain attachment to secure the alarm to your keys, bag, belt loop, or other easily accessible items. Ensure it is securely fastened to prevent accidental loss.

Operating Instructions
Alarm Activation Modes
The TECKNET AF-2004 offers two methods for activating the alarm:
- Pull-Pin Activation:
To activate the alarm, firmly pull the ring-shaped pin away from the main unit. The 130dB siren and strobe light will activate instantly.
To deactivate, reinsert the pin fully into the alarm unit.

Image: Illustration of pulling the pin to activate the alarm and reinserting it to deactivate. - Button Activation:
For a more discreet activation, double-press the button located on the side of the alarm. This will also trigger the 130dB siren and strobe light.
To deactivate, press and hold the button for approximately 4 seconds.

Image: Illustration of double-pressing the side button to activate the alarm and pressing and holding to deactivate.
Light Modes
The integrated LED light can be used independently of the alarm function:
- 1st Click: Activates the flashlight mode (steady light).
- 2nd Click: Activates the flashing mode (strobe light).
- 3rd Click: Turns off the light.

Maintenance
Charging
The alarm features a low battery indicator to alert you when charging is required. Connect the USB-C cable to a power source. A full charge provides:
- Up to 500 days of standby time.
- Up to 90 minutes of continuous alarm sound.
- Up to 5 hours of continuous flashing light.
- Up to 3 hours of continuous steady light.

Cleaning and Storage
- Wipe the device with a soft, dry cloth. Do not use abrasive cleaners or solvents.
- Store the alarm in a cool, dry place away from direct sunlight and extreme temperatures.
- Ensure the device is fully charged before storing for extended periods to maintain battery health.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Alarm does not activate. | Low battery; Pin not fully pulled; Button not double-pressed or held correctly. | Charge the device; Ensure pin is fully removed; Double-press the button quickly or press and hold for deactivation. |
| Light does not turn on. | Low battery; Button not pressed correctly. | Charge the device; Press the button once for steady light, twice for flashing light. |
| Alarm sounds weak. | Low battery. | Charge the device fully. |
If you experience issues not covered here, please contact TECKNET customer support.
Specifications
| Model Number | AF-2004 |
| Siren Loudness | 130 dB |
| Power Source | Rechargeable Lithium-Ion Battery |
| Charging Port | USB-C |
| Charging Time | Approx. 1.5 hours |
| Standby Time | Up to 500 days |
| Alarm Duration | Up to 90 minutes (continuous) |
| Light Duration (Steady) | Up to 3 hours (continuous) |
| Light Duration (Flashing) | Up to 5 hours (continuous) |
| Dimensions (L x W x H) | 3.94 x 1.26 x 0.49 inches (100 x 32 x 12.5 mm) |
| Weight | 0.99 ounces (28 grams) |
| Included Components | Personal alarm unit, keychain, USB-C cable |
Warranty and Support
Warranty Information
The TECKNET AF-2004 Personal Safety Alarm comes with a 36-month warranty. To activate your warranty, please register your product on the official TECKNET website. This warranty covers manufacturing defects and ensures product reliability.
Customer Support
For any questions, technical assistance, or warranty claims, please contact the professional TECKNET customer service team. Contact details can typically be found on the official TECKNET website or on the product packaging.
Please have your model number (AF-2004) and purchase information ready when contacting support.





