KERUI D2 Wireless Door/Window Security Alarm System

1. Introduction

The KERUI D2 is a sophisticated door sensor alarm host designed to enhance your home security. It detects and alarms immediately when a door or window is opened. This system can also be programmed with remote controls and various detectors, making it a versatile addition to any home or garage security setup. When armed, the KR-D2 directly alarms to deter intruders from doors and windows upon magnetic contact separation. The wireless door sensor alarm host can connect with additional PIR detectors, door sensors, gas detectors, smoke detectors, and emergency buttons.

2. Product Overview

2.1 Components

• Alarm Unit (Host): Contains the loudspeaker, setting button, and indicator light.
• Magnetic Stripe: The smaller component that works in conjunction with the alarm unit.
• Remote Control: Features Arm, Disarm, Emergency, and Voice Switch buttons.

2.2 Key Features

• 120dB Alarm Sound: Emits a loud alarm when triggered, effectively deterring intruders.
• Wireless Remote Control: Conveniently arm, disarm, activate SOS, or use doorbell options from up to 300 feet away.
• Linkage Alarm System: Expand your security by connecting up to 10 additional detectors (PIR, door sensors, gas, smoke, emergency buttons) and 20 remote controls.
• LED Indicator Lights: LEDs flash to indicate status, including alarm activation and low battery.
• Low Battery Reminder: The alarm volume will decrease and alarm time shorten when batteries are low, signaling replacement is needed.
• Versatile Application: Suitable for securing doors, windows, cabinets, and enhancing overall home security, child safety, and personal safety in various environments.

3. Setup and Installation

3.1 Pre-Installation Guidelines

Before installation, please observe the following to ensure proper function:

• Do not install in locations where the device is easily broken.
• Ensure the installation surface is stable and flat.
• Avoid installing near strong magnetic objects, as this can interfere with operation.

3.2 Physical Installation

The KERUI D2 alarm is designed for easy setup using the provided double-sided tape. Follow these steps:

1. Prepare Surface: Clean the surface where the alarm unit and magnetic stripe will be attached. Ensure it is dry and free of dust or grease.
2. Separate Components: Remove the back cover of the main alarm unit and the magnetic stripe.
3. Attach Alarm Unit: Affix the main alarm unit to the door or window frame.
4. Attach Magnetic Stripe: Attach the magnetic stripe to the door or window itself, aligning it with the alarm unit. Ensure the gap between the alarm unit and the magnetic stripe is no more than 1 cm when the door/window is closed.
5. Activate: Turn on the switch on the alarm unit to start working.

3.3 Programming Remote Controls and Detectors

The D2 alarm host can be expanded with additional remote controls and detectors. It supports up to 20 remote controls and 40 detectors.

Entering Programming Status:

Press the SET button on the alarm host for a short while. The host will enter programming status. In this mode, the 4 LED indicators will light up, representing zones 1 to 4 from top to bottom.

Adding Remote Controls:

1. Enter programming status. All four indicators of the host will be on.
2. Trigger the remote control you wish to add (e.g., press any button).
3. The LED indicators will flash twice, and the host will "beep" twice, indicating successful learning.
4. If all indicators flash once and the host "beeps" once, it means the remote is being re-coded.
5. If all indicators flash 3 times and the host "beeps" three times, it means the memory for remote controls is full.

Adding Detectors:

1. Enter programming status.
2. Press the SET button shortly to switch between zones (1-4).
3. Trigger the detector you wish to add (e.g., separate its magnetic contact).
4. The zone indicators will flash twice alternately with other indicators, and the host will "beep" twice, indicating successful learning.
5. If the zone indicators flash once alternately and the host "beeps" once, it means the detector is being re-coded.
6. If the zone indicators flash four times alternately and the host "beeps" four times, it means the memory for detectors in that zone is full.

To exit programming status, press the SET button shortly or wait 20 seconds without any operation.

4. Operation

4.1 Alarm Unit Functions (SET Button)

• Power On/Off: Press the SET button for a while. When turning on, the indicator lights will gradually illuminate from top to bottom and then turn off. When shutting down, all lights will brighten and then turn off one by one from bottom to top.
• Change Arming Ringing/Music: Press the SET button shortly to cycle through two available ringing/music options.
• Change Arming Ringing Status: Press the SET button shortly. When armed, four LED lights will flash once and the host will "beep" once. Press again, and the four LED lights will flash twice, and the host will "beep" twice.

4.2 Remote Control Functions

The remote control provides convenient access to the alarm system's primary functions:

• Arm: Activates the alarm system.
• Disarm: Deactivates the alarm system.
• Emergency: Triggers an immediate alarm (SOS function).
• Voice Switch: Toggles voice prompts or sounds.

4.3 Defense Zone Modes

The D2 alarm system supports different defense zone modes:

• Switching Modes: Press the Arm and Disarm buttons on the remote control simultaneously for a while to switch between modes.
• Normal Mode: All 4 zones are common zones. If a detector in any of these zones is triggered while armed, the host will alarm. (Indicated by 4 indicators flashing three times).
• Independent Zone Mode: Zones 1 and 2 are Normal Defense Zones, Zone 3 is a CHIME Zone, and Zone 4 is an EMERGENCY Defense Zone. (Indicated by the top two lights flashing 3 times only).

Independent Zone Definitions:

• Normal Defense Zone: When a detector in this zone is triggered in the armed state, the host will alarm.
• CHIME Zone: Regardless of the system's arming status, when a sensor in this zone is triggered, a welcome doorbell sound will ring as a notification.
• EMERGENCY Defense Zone: Regardless of the system's arming or disarming status, if a detector in this zone is triggered, it will immediately alert.

5. Maintenance

5.1 Battery Replacement

The alarm unit requires 2x AAA 1.5V batteries. The D025 door sensor (if used) requires 1x 12V 23A battery. Batteries are not included with the product.

When the alarm unit's battery is very low, the alarm volume will decrease, and the alarm time will shorten, indicating that the batteries need to be replaced. The standby time for the D2 alarm unit is approximately one year.

1. Press the contact (A) and slide down to open the battery cover.
2. Remove the old batteries.
3. Insert new batteries, ensuring correct positive (+) and negative (-) pole orientation.
4. Close the battery cover.
5. Test the sensor by triggering it with a magnet to ensure it arms immediately.
6. Fasten the sensor securely in its original position.

5.2 Factory Reset

To perform a factory reset on the alarm unit:

1. Remove the batteries from the alarm unit.
2. Hold down the SET button.
3. While holding the SET button, reinsert the batteries.
4. The LED light will activate, and after 10 "beep...beep" sounds, the LED light will flash, indicating the sensor has been reset to factory defaults.

6. Troubleshooting

• Alarm not sounding or inconsistent: Ensure the gap between the main unit and the magnetic stripe is less than 1 cm when closed. Check battery levels and replace if necessary. Verify the alarm is armed.
• Remote control not working: Check the remote control's battery. Ensure it is properly paired with the alarm host (refer to Section 3.3).
• Alarm continues after door/window is closed: The alarm is designed to continue until manually disarmed by the remote control or until its internal timer expires (if applicable, not specified). Closing the door/window does not automatically disarm the system.
• Cannot add more remote controls/detectors: The system supports a maximum of 20 remote controls and 40 detectors. If you've reached this limit, you cannot add more.
• Product no longer works: Try performing a factory reset (refer to Section 5.2). If the issue persists, contact customer support.
• Can the D2 be used outdoors? The KERUI D2 is primarily designed for indoor use. Exposure to outdoor elements may affect its performance and lifespan.

7. Specifications

8. User Tips

• Battery Life: The D2 alarm unit offers a standby time of approximately one year. Remember to replace batteries promptly when the low battery indicator appears.
• Remote Control Range: The remote control can operate the alarm system from up to 300 feet, offering flexibility in arming and disarming.
• Expandability: You can significantly expand your security system by adding up to 20 remote controls and 40 various detectors to a single D2 alarm host.
• Multiple Alarms with One Remote: Yes, a single remote control can be configured to arm/disarm multiple D2 alarm hosts, provided they are within range and properly paired.
• PDF User Manual: For a detailed visual guide and additional information, please refer to the official user manual PDF available at https://manuals.plus/m/af5d41a63db80386bb9db9749a88050bdce85a5cb502c0b8e025900e699bc1a1.

9. Warranty and Support

For warranty information, technical support, or any product-related inquiries, please contact the KERUI Official Store directly through your purchase platform. Keep your purchase records for faster service.