








๐จ Stay ahead of every step with smart security that welcomes you back.
The Blackt Electrotech BT51A is a compact wireless motion sensor alarm featuring an 8-meter infrared detection range and a powerful 110-decibel alarm with four adjustable volume settings. Designed for easy installation via wall mount or double-sided tape, it doubles as a welcome doorbell and security alert system, making it perfect for homes, offices, and commercial spaces seeking reliable, customizable protection.





| Control Method | Touch |
| Noise Level | 110 Decibels |
| Mounting Type | Wall Mount |
| Maximum Range | 8 metres |
| Sensor Technology | Infrared Sensor |
| Item Weight | 150 Grams |
| Size | Small |
| Manufacturer | Blackt Electrotech |
| Country of Origin | China |
| Item model number | BT51A |
| Product Dimensions | 8 x 4.5 x 4.5 cm; 150 g |
| ASIN | B0DBL4D681 |
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