Blackt Electrotech BT51A Wireless Motion Sensor Alarm with Intelligent Welcome Doorbell, Infrared Detector, Gate Alert Alarm, Remote Control, Easy Install for Daily Safety Protection
Details
- Colourwhite
- BrandBlackt
- Power SourceBattery
- Battery DescriptionAlkaline
- Voltage5 Volts
Description
🚨 Stay ahead of every arrival and intrusion with smart, stylish security.
- HASSLE FREE SETUP - No tools, no stress—mount on any surface with included double-sided tape or tabletop placement.
- PRECISION INFRARED SENSING - Detects motion up to 8 meters for timely notifications and enhanced safety.
- CUSTOMIZABLE VOLUME CONTROL - Four volume levels up to 110dB let you tailor alerts from discreet to commanding.
- VERSATILE PLACEMENT OPTIONS - Ideal for homes, offices, galleries, and more—security that fits your lifestyle.
- DUAL MODE SECURITY WELCOME - Seamlessly switch between alert and greeting modes to suit your space and vibe.
The Blackt Electrotech BT51A is a compact wireless motion sensor alarm featuring an 8-meter infrared detection range and a powerful 110-decibel adjustable alarm. Designed for versatile use as both a security alert and welcome doorbell, it offers easy installation and flexible volume control, making it perfect for professional and residential environments seeking reliable, customizable safety solutions.
Specifications
| Control Method | Touch |
| Mounting Type | Tabletop Mount |
| Sensor Technology | Infrared Sensor |
| Maximum Range | 8 metres |
| 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 |
Reviews
A**R
Good
Sensing distance is very low, to improve remove the front plastic shield were you see red light. Then the sensing distance improves lot
N**I
Limited range 6-8 feet only.Not so good
It does not work beyond 8 feet,no return facility given,works OK within 6-8 feet.Wrong claim given in specification of product. Not good enough.
I**L
DUE TO SENSOR ACCURAC NOT GETTING RESPONSE AS DOOR BELL
ACCURACY - PRODUCT SENSRO NOT WORKING PROPERLY
B**R
Excellent product
Serve the purpose of an alarm 100%Very useful product to track movement of elderly ,small kids & at entry point of house or shop.
J**R
Excellent
Excellent
M**
Range issue
Range is just one feet only
A**I
PIR RANGE
PIR RANGE 10 FEET STRAIGHT ONLY NOT 360 DIGREE. REMOTE CONTROL RANGE 16 FEET.
A**R
Works well
Works well, simple to use.Remote control
Common Questions
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1 month ago
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