Introduction
The TECHKO S063 Portable Door Wedge Guard is designed to enhance security by detecting unauthorized entry through a door. This device functions as a door stop and incorporates both vibration and contact sensors to trigger a loud alarm upon detection of forced entry.
Please read this manual thoroughly before operating the device to ensure proper use and optimal performance.
Safety Information
- This device is intended for indoor use only.
- Do not expose the device to water or excessive moisture.
- Keep out of reach of children.
- Ensure correct battery polarity when installing.
- Remove batteries if the device will not be used for an extended period.
- The alarm produces a loud sound (120 dB). Avoid prolonged exposure to prevent hearing discomfort.
Package Contents
- 1 x TECHKO S063 Portable Door Wedge Guard
- (Note: 9-volt battery not included)
Product Overview

Figure 1: The TECHKO S063 Portable Door Wedge Guard. This image shows the device from an angled perspective, highlighting the main body, the ON/OFF switch on the side, and the metal contact plate at the front. The alarm speaker is visible on the top surface.
- Alarm Speaker: Emits a loud 120 dB alarm.
- Metal Contact Plate: Detects pressure when a door attempts to open over it.
- ON/OFF Switch: Activates or deactivates the alarm system.
- Battery Compartment: Located on the underside (not visible in this view), holds one 9-volt battery.
Setup
1. Battery Installation
- Locate the battery compartment cover on the underside of the device.
- Slide or open the cover to access the compartment.
- Insert one standard 9-volt battery, ensuring correct polarity (+ and - terminals match).
- Close the battery compartment cover securely.
2. Placement
- Place the door wedge guard firmly under the door you wish to secure.
- Ensure the metal contact plate is positioned to be depressed if the door is opened.
- The wedge design should prevent the door from opening while also providing a stable base for the alarm.
Operating Instructions
- Arming the Device: After placing the device under the door, slide the ON/OFF switch to the "ON" position. The unit will arm after a 10-second delay. This delay allows you to exit the room without triggering the alarm.
- Alarm Activation: The alarm will sound instantly if:
- Significant vibration is detected (e.g., someone attempting to force the door open).
- The metal contact plate is depressed (e.g., the door pushes against the wedge).
- Disarming the Device: To stop the alarm, slide the ON/OFF switch to the "OFF" position.
Maintenance
Battery Replacement
When the alarm sound becomes weak or the device fails to activate, it is time to replace the 9-volt battery. Follow the battery installation steps outlined in the "Setup" section.
Cleaning
Wipe the device with a soft, dry cloth. Do not use abrasive cleaners or immerse the device in water.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Alarm does not sound. | Battery is dead or incorrectly installed. | Replace battery, ensuring correct polarity. |
| Alarm is too quiet. | Low battery. | Replace battery. |
| Alarm triggers accidentally. | Device is too sensitive or improperly placed. | Adjust placement to ensure it's stable and not subject to minor vibrations. Ensure the 10-second arming delay is respected. |
| Alarm does not stop. | Switch is stuck or faulty. | Slide the ON/OFF switch to "OFF". If it persists, remove the battery. Contact customer support if the issue continues. |
Specifications
- Model: S063
- Alarm Volume: 120 dB
- Power Source: 1 x 9-volt battery (not included)
- Detection: Vibration and Contact Sensor
- Dimensions: Approximately 21.59 x 15.49 x 4.32 cm (8.5 x 6.1 x 1.7 inches)
- Weight: Approximately 454 g (1 lb)
- Manufacturer: Techko
Warranty and Support
For warranty information or technical support, please refer to the product packaging or contact TECHKO customer service directly. Contact details are typically available on the manufacturer's official website or included documentation.
Please retain your purchase receipt for warranty claims.





