Blackt Electrotech : BT31W PIR Sensor Motion Sensor Energy Saving Motion Detector Wall Mounted


Price: ₹800 - ₹62.00
(as of Dec 09, 2025 01:31:11 UTC – Details)

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Motion That Powers Light

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🌟 [Automatic Energy Saving]: Equipped with a timer function to automatically turn off the sensor when no motion is detected, reducing electricity usage significantly.
🔍 [Adjustable Sensitivity & Brightness]: Sensitivity range adjustable from 1 to 8 meters, with light brightness customizable between 0 to 2000 Lux for accurate detection without false alarms. Designed for seamless integration with an installation height of 2-4 meters.
📏 [Wide Detection Angle]: Offers 360° ceiling and 180° wall detection, making it ideal for areas like hallways, bathrooms, closets, and corridors.
⚡ [High Load Capacity]: Supports up to 1200W for incandescent and 300W for LED lights, suitable for various lighting setups.
🔍 [Compact & Adjustable Design]: Designed for seamless integration into any space with a compact size of 12x12x6.5 cm and an adjustable installation height of 2-4 meters.
🛡️ [18-Month Warranty]: Backed by 18 months of manufacturing warranty for reliable, worry-free usage.

Customers say

Customers find the motion detector to be a useful home automation tool that’s easy to install and offers good value for money. The product receives positive feedback for its quality and functionality, though some report it stops working after 41 days. The sensor range and motion detection receive mixed reviews – while some find the sensing mechanism good, others say it doesn’t catch human movements correctly, and while some report it works well, others mention it doesn’t detect motion at all. The adjustment ability also gets mixed feedback, with customers noting the tiny control knobs as a limitation.