1. はじめに
The SanJie DA03S-8 Door and Window Alarm Sensor is designed to enhance the security of your home or property. This wireless, easy-to-install device provides an audible alert when a protected door or window is opened, offering peace of mind for various applications including child safety, home security, and monitoring access points.
2 製品の特徴
- 安心: Guards your home's security and helps ensure the safety of children and the elderly.
- 幅広い用途: Magnetic sensor triggers an alarm or chime when separated. Suitable for pools, homes, apartments, stores, offices, garages, RVs, warehouses, hotels, and can be installed on sliding doors/windows, cabinets, drawers, etc.
- 簡単にインストールできます: Features 3M double-sided tape for quick, tool-free installation on doors or windows.
- 音量コントロール: Offers 3 modes: 125dB Alarm (loud), 100dB Alarm, and 100dB Chime (ding-dong 2 times). The alarm sounds continuously for 30 seconds and stops when the door/window is closed.
- 長いバッテリー寿命: Powered by 3 LR44 button batteries (included), providing up to 12 months of normal operation. A low battery indicator light will flash to alert you when replacement is needed.
3. パッケージ内容
- SanJie Door and Window Alarm Unit (x8)
- 磁気ストリップ(8枚)
- LR44 Button Batteries (3 per unit, pre-installed)
- Double-sided Adhesive Tape (pre-applied)
4.コンポーネントオーバーview

- Main Alarm Unit: Contains the speaker, ON/OFF switch, setup key, and low battery indicator.
- 磁気ストライプ: The smaller component that triggers the alarm when separated from the main unit.
- オン/オフスイッチ: Located on the side of the main unit to power the device.
- セットアップキー: A small button on the front of the main unit to cycle through alarm modes.
- 低バッテリーインジケーター: An LED light that flashes to indicate low battery.
- バッテリーコンパートメント: Located at the bottom of the main unit for LR44 battery access.
5. セットアップとインストール
5.1 バッテリーの取り付け
The alarm units come with 3 LR44 button batteries pre-installed. Before first use, ensure any protective tabs are removed from the battery compartment if present. The low battery indicator will flash 5 times when batteries need replacement.

5.2 アラームの取り付け
- 表面をきれいにする: Ensure the surface where you plan to install the alarm and magnetic strip is clean, dry, and smooth.
- 接着剤の準備: The units come with double-sided adhesive tape pre-applied. Peel off the protective backing from both the main alarm unit and the magnetic strip.
- 本体の位置: Attach the main alarm unit to the fixed part of your door or window frame.
- Position the Magnetic Strip: Attach the magnetic strip to the moving part of the door or window. Ensure the magnetic strip is aligned with the main alarm unit's marked triangle and the gap between them is no more than 0.4 inches (approximately 1 cm) when the door/window is closed.
- テストインストール: Open and close the door/window to verify the alarm triggers and stops correctly.


Video 1: Demonstration of easy installation for door and window alarms.
6. 操作手順
6.1 電源オン/オフ
Locate the ON/OFF switch on the side of the main alarm unit. Slide the switch to the 'ON' position to activate the alarm, and to the 'OFF' position to deactivate it.
6.2 モード選択
The alarm offers three distinct modes. To cycle through these modes, press the 'Setup key' button located on the front of the main alarm unit.
- Mode 1 (125dB Alarm): Provides a very loud alarm sound. Ideal for deterring intruders or alerting to critical access.
- Mode 2 (100dB Alarm): A loud alarm sound, suitable for general security and alerting to children or the elderly opening doors.
- Mode 3 (100dB Chime): A 'ding-dong' sound (2 times), perfect for notification when someone enters or exits, such as in a shop or for monitoring children without a startling alarm.




ビデオ2: 終了view of alarm modes and their applications for safety and security.
7. メンテナンス
7.1 電池の交換
When the low battery indicator flashes 5 times, it's time to replace the batteries. Open the battery compartment at the bottom of the main unit, remove the old LR44 batteries, and insert 3 new LR44 batteries, ensuring correct polarity. Close the compartment securely.
7.2 クリーニング
Wipe the alarm units with a dry, soft cloth. Do not use liquid cleaners or abrasive materials, as this may damage the device.
8。 トラブルシューティング
- アラームが作動しない:
- オン/オフスイッチが「オン」の位置にあることを確認します。
- 電池が正しく取り付けられており、消耗していないことを確認してください。必要に応じて交換してください。
- Verify that the main unit and magnetic strip are aligned correctly and the gap is less than 0.4 inches when the door/window is closed.
- アラームが継続的に鳴ります:
- Ensure the door or window is fully closed and the magnetic strip is within 0.4 inches of the main unit.
- If the issue persists, try repositioning the units slightly.
- Volume too low or mode incorrect:
- Press the 'Setup key' button to cycle through the 3 available modes (125dB Alarm, 100dB Alarm, 100dB Chime) until the desired setting is reached.
9. 仕様
| モデル番号 | DA03S-8 |
| 電源 | 3 x LR44 Button Batteries |
| バッテリー寿命 | 最大12か月(通常の使用) |
| 騒音レベル | 100dB - 125dB (depending on mode) |
| 活性化ギャップ | Separation greater than 0.4 inches (1 cm) |
| インストール方法 | 粘着式 |
| 材料 | プラスチック |
| 色 | 白 |
| 製品寸法(本体) | 2.9"L x 1.5"H x 0.4"W (approx.) |
10.保証とサポート
This SanJie product comes with a lifelong warranty, ensuring long-term reliability and customer satisfaction. For any questions, troubleshooting assistance, or warranty claims, please contact SanJie customer support through the retailer's platform or the official SanJie webサイト。
保証のために購入証明として購入レシートを保管してください。