1. Product Overview
The KERUI ZD280 is an ultra-slim, high-sensitivity wireless vibration alarm sensor designed to enhance the security of your home, windows, doors, bikes, bags, and other valuables. It features a 120dB loud alarm and vibration induction technology to detect unauthorized movement or tampering.
Key features include vibration induction, ease of operation, smart and portable design, and a high-pitched alarm.
2. Setup and Installation
Before using your KERUI ZD280 vibration alarm, please ensure you have read these instructions carefully.
2.1 Initial Setup
- The alarm host should be connected to a 2.4GHz Wi-Fi network.
- Ensure your phone's Bluetooth is turned on for initial pairing and setup.
- A siren cannot work independently; it must be used with a remote control and other accessories such as a door sensor or infrared sensor.
2.2 Physical Installation
The ZD280 is designed for versatile installation. It can be clamped, hung, or hooped for various scenarios.
2.3 Attaching Accessories
The alarm can be secured using a fixed rubber ring or a lanyard for various applications.
3. Operating Instructions
3.1 Power On/Off and Arming
- To activate the alarm, turn the switch to the "ON" position. The red light will illuminate, indicating it's armed.
- To disarm the alarm and disable detection, turn the switch to the "OFF" position.
3.2 Alarm Functionality
When the product is touched with a certain degree of force, it will immediately trigger an alarm. The alarm will continuously sound for 8 seconds, emitting a strong sound, and the red light will flash.
3.3 Smart Features (with Wi-Fi Host)
- Remote Alerts: Receive immediate message alerts on your phone anywhere, even when you are not at home.
- Zone Modes: Set different zone modes for various scenarios. For example, a smoke sensor can be set to a 24-hour mode. The alarm host will trigger regardless of the Wi-Fi loudspeaker's state if a detector is triggered.
- Custom Naming: All connected accessories and sensors can be custom named for easier identification and management.
- Arm/Disarm Modes: Adjust armed states (e.g., "Armed when going out"). If you don't want the device to work, set it to "Disarmed" (only emergency area devices will work). Switch to "Home mode" when you are at home.
- Scheduling: Freely set the working time of the alarm. Turn it off when at home and turn it on when away.
- Delay and Duration: Set an entry delay alarm time (1-199 seconds) and an alarm duration (1-4 minutes, adjustable).
3.4 Voice Assistant Integration
The KERUI ZD280 is compatible with Google Home and Amazon Alexa. For detailed connection instructions, please refer to the video guide at: https://youtu.be/YS7EyJZ3Nq8
4. Maintenance
4.1 Battery Replacement
The device uses a CR2032 button battery. When the alarm's performance degrades or the indicator light becomes dim, it's time to replace the battery. Carefully open the device casing and replace the old battery with a new CR2032 battery, ensuring correct polarity.
4.2 Cleaning
Wipe the device with a soft, dry cloth. Do not use liquid cleaners or abrasive materials, as these can damage the device.
5. Troubleshooting (Q&A)
- Q1: Do I need to order an alarm panel (control center) for this siren?
- A1: No, this siren functions as an alarm system on its own. It can work with wireless sensors to protect your house without a separate control panel.
- Q2: Does this siren system support adding extra sensors or remote controllers? How many?
- A2: Yes! This siren alarm system can work with up to 20 remote controllers + doorbell buttons and up to 30 wireless sensors. Compatible sensors include wireless gas detectors, smoke detectors, CO carbon detectors, door/window sensors, PIR motion detectors, water leakage sensors, vibration sensors, and glass break detectors.
- Q3: Can I control 2 or more sirens using 1 remote controller or more? For example, if I have 6 rooms and want to install 6 sirens and control them all with 2 or more controllers?
- A3: Yes! A single remote controller can be used to control two or more siren systems. Similarly, one sensor can be configured to work with two or more sirens.
6. Specifications
| Feature | Specification |
|---|---|
| Model Number | ZD280 (HH-ZD280) |
| Brand Name | KERUI |
| Origin | Mainland China |
| Certification | CE |
| Product Name | Vibration anti-theft alarm |
| Product Size | 43 * 38 * 16mm |
| Product Weight | Approx. 40g |
| Alarm Method | Vibration + Flashing + Sound |
| Alarm Decibel | 120dB |
| Alarm Time | 8 seconds (continuous) |
| Battery Type | CR2032 (Two button batteries) |
| Power Cable | DC 9V1A (included), approx. 92cm/3ft length |
| Power Input | AC 110-240V |
| Wireless Operating Frequency | 433MHz |
| Operating Environment Stability | 0℃ - 55℃ |
| Operating Environment Humidity | 40% - 70% Relative Humidity |
| Outer Box Specification | 34 * 25.5 * 15cm (for 100PCS/box batteries) |
7. Warranty and Support
For warranty information and technical support, please contact your retailer or the manufacturer directly. Keep your purchase receipt as proof of purchase.
AliExpress offers a "Free returns within 90 days" policy and "Fast delivery & get refunds for any issues" for eligible purchases. Please refer to the AliExpress platform for specific terms and conditions regarding these services.
