Door/window sensor Avanca International HBSC-0109 — Wireless Bluetooth, CR2 battery, 45×55 mm, white

Avanca International HBSC-0109 is a wireless door and window sensor with Bluetooth connectivity, designed to detect open and closed states for basic intrusion monitoring and presence checks. The compact white housing measures 45 × 55 mm and the unit weighs approximately 40 g. Power is provided by a single CR2 lithium battery, and the sensor is supplied as a single unit for integration into smart home setups and security systems that support Bluetooth devices.

Advantages

The sensor provides straightforward open/close detection using energy-efficient Bluetooth communications and a compact form factor suitable for narrow frames and standard door or window profiles. Battery operation with a CR2 cell allows installation without wiring, and the lightweight housing simplifies mounting on a variety of surfaces. The device is compatible with Bluetooth-based smart home systems that accept third-party sensors, enabling notifications and automation when paired with a supporting bridge or hub.

Suitable for

• Monitoring doors and windows for open/closed state changes
• Basic intrusion detection in residential rooms or small offices
• Integration into Bluetooth-compatible smart home setups via a supporting bridge
• Battery-powered installations where wiring is impractical

Key specifications

• Connectivity: Wireless Bluetooth
• Power source: CR2 lithium battery
• Dimensions: 45 × 55 mm
• Weight: approximately 40 g
• Color: white
• Package contents: single sensor unit

How to use

Mount the sensor on a door or window frame and align the magnet or contact piece on the moving part so that the sensor detects the open and closed positions. Insert the CR2 battery following the polarity markings and ensure the battery compartment is securely closed. Pair the sensor with a compatible Bluetooth hub or bridge according to the bridge manufacturer’s pairing procedure; once paired it will report open/close events and can trigger notifications or automations in the associated smart home app.

Recommendations

Place the sensor on clean, dry surfaces and avoid locations exposed to direct weather or heavy condensation. Verify Bluetooth range to the bridge before final mounting and replace the CR2 battery according to the device’s battery indicator or when notifications indicate low battery. Use the sensor with a compatible Bluetooth bridge or hub to enable mobile notifications and automation.