KERUI 433mhz Wireless Door Sensor Instruction Manual

1. Product Overview

The KERUI 433mhz Wireless Door Sensor is a crucial component for enhancing your home security system. It is designed to detect the opening of doors or windows and trigger an alarm when integrated with compatible alarm hosts. This sensor operates wirelessly at 433mhz and is compatible with KERUI W181, W184, W202, and W204 WIFI GSM Alarm Systems.

2. Installation

2.1 Physical Installation

The door sensor consists of two main parts: the main sensor unit and a magnetic strip. These two parts must be installed in close proximity to each other on a door or window frame.

1. Identify the desired location on your door or window. Ensure the main sensor unit and the magnetic strip can be mounted parallel to each other.
2. Clean the surface thoroughly where the sensor will be mounted to ensure proper adhesion of the double-sided sticker.
3. Attach the main sensor unit to the door/window frame and the magnetic strip to the moving part of the door/window using the provided double-sided stickers.
4. Ensure the main body and the magnetic strip are separated by no more than 1cm when the door/window is closed. For increased sensitivity, aim to align the middle part of both components.

Important Installation Notes:

• Door Alarm Sensor should not be installed on metal doors, as metal can interfere with the wireless signal.
• The main body and the magnetic strip should not be separated by more than 1cm when the door/window is closed. They must be aligned parallel to each other.
• Avoid metal obstructions between the door sensor and the main alarm unit, as this can affect the signal transmission.

2.2 Pairing with Alarm Host

The sensor needs to be paired with a compatible alarm host (e.g., KERUI W181, W184, W202, W204, J009, or other WiFi/Standalone Siren Alarms) to function as part of your security system. The sensor is powered by a 12V 23A battery.

Pairing with Standalone Siren:

1. Connect the siren to the power supply. A loud beep will be emitted. Wait more than 6 seconds.
2. Unplug and plug in the siren's power supply 3 times to enter pairing mode. The siren will beep 3 times to confirm.
3. Separate the door sensor and the magnetic strip. The alarm will emit a "beep" sound after successful pairing.

Pairing with WiFi Siren Alarm:

1. Short press the [SET] key on the WiFi Siren Alarm to put it into pairing mode.
2. Separate the door sensor and the magnetic strip. When you hear a beep from the siren, trigger the Door Alarm Sensor.

Pairing with J009 Siren:

1. Long press the [Set] button on the J009 Siren for three seconds. The siren will "DIDI" once and its indicator light will activate, indicating it has entered study mode.
2. Separate the door sensor and the magnetic strip to pair with the siren. The siren will "DIDI" twice to indicate successful pairing.

3. Operation

Once installed and paired, the KERUI Wireless Door Sensor operates by detecting the separation of its two components (the main unit and the magnetic strip). When a door or window opens, causing the two parts to separate, the sensor transmits a signal to the paired alarm host, triggering the alarm.

Indicator Lights:

• Alarm Indicator: Illuminates when the sensor detects an opening and transmits an alarm signal.
• Low Voltage Indicator: Illuminates when the battery level is low and requires replacement.

4. Maintenance

4.1 Cleaning the Sensor

Dust, dirt, or other debris can affect the sensor's performance. Regularly clean the sensor and its magnetic strip to ensure they are not obstructed or covered. Use a soft, dry cloth for cleaning.

4.2 Battery Replacement

The sensor is powered by a 12V 23A battery. When the Low Voltage Indicator illuminates, it's time to replace the battery. To replace the battery:

1. Carefully open the main sensor unit casing.
2. Remove the old 12V 23A battery.
3. Insert a new 12V 23A battery, ensuring correct polarity.
4. Close the casing securely.

5. Troubleshooting

Door Alarm Sensor Not Working Properly?

• Check the Battery or Power Source: Verify if the 12V 23A battery needs replacement or if the power connection (for the alarm host, if applicable) is secure.
• Confirm Installation Position and Distance: Ensure the sensor and magnetic strip are within the recommended 1cm distance when closed and are aligned parallel. Refer to the installation section for optimal placement.
• Clean the Sensor and Magnet: Dust, dirt, or debris can interfere with performance. Clean both parts of the sensor to ensure they are unobstructed.
• Re-pair or Reset: Sometimes, re-pairing the sensor with your alarm host can resolve issues. Follow the pairing instructions in Section 2.2.
• Check for Signal Interference: Other electronic devices might interfere with the sensor's 433mhz signal. Try moving potential interfering devices or temporarily turning them off to see if performance improves. Avoid installing on metal surfaces.

If these steps do not resolve the issue, please contact customer support for further assistance, providing details such as the sensor model and specific circumstances of the problem.

6. Specifications

7. User Tips

• Many users find the sensor connects very easily to their existing siren or alarm system.
• The included 12V battery is a convenient addition, allowing for immediate setup.
• Ensure the sensor is properly aligned and within the 1cm separation limit for reliable operation.

8. Frequently Asked Questions (FAQ)

Q: Can this sensor be used with other door sensors or extend their range?

A: This KERUI wireless door sensor is designed to integrate with compatible KERUI alarm hosts (e.g., W181, W184, W202, W204, J009, WiFi Siren Alarm). Its primary function is to detect door/window openings and send a signal to the alarm host. It does not inherently extend the range of other sensors but operates as an independent detection point within the alarm system's wireless coverage.

9. Warranty and Support

Thank you for choosing our product. We are committed to providing professional service.

• Defect Replacement: If the product has any defect within one month of receipt, we will send a new one free of charge.
• Customer Support: For any questions or issues, please contact our customer support. We aim to respond within 24 hours to assist you.

For a comprehensive user manual, you can also refer to the official PDF document: View User Manual (PDF).