⚡ Power your space smartly with Blackt Electrotech’s BT31W – where efficiency meets precision!
The Blackt Electrotech BT31W is a wall-mounted PIR motion sensor designed for energy-efficient automation. Featuring adjustable sensitivity (1-8m) and brightness (0-2000 Lux), it offers 360° ceiling and 180° wall detection coverage. It supports high load capacities (up to 1200W incandescent, 300W LED), fits compactly in any space, and includes an automatic timer to reduce power consumption. Backed by an 18-month warranty, it’s ideal for residential and commercial security and energy management.
| Brand | Blackt Electrotech |
| Colour | White |
| Power Source | Corded Electric |
| Item Weight | 180 Grams |
| Maximum Range | 12 metres |
| Mounting Type | Wall Mount |
| Battery Description | Battery not included |
| Compatible Devices | Light, Fan, Bulb, CFL |
| Frequency | 50 Hz |
| Recommended Uses For Product | Residential Security, Commercial Security, Automation, Energy Management |
| Manufacturer | Blackt Electrotech, Blackt Electrotech |
| Manufacturer | Blackt Electrotech |
| Country of Origin | India |
| Model number | BT-31 |
| Number of Memory Sticks | 3 |
| Item Weight | 180 g |
| Package Dimensions | 13 x 9.2 x 7.4 cm; 180 g |
| Item model number | BT-31 |
| Voltage | 230 Volts (AC) |
| Wattage | 300 Watts |
| Included Components | Nuts |
| Battery type | Battery not included |
| Are batteries included? | No |
R**O
Excellent
Works as expected and detects motion, good quality and easy to install.
M**S
Quality
Good product..Very useful
R**N
Motion detector that works well
I have fitted this motion detector to light up LEDs in a display cupboard at home. I could adjust the settings to get the exact behaviour I need. The settings knobs are a bit tiny, but it is needed only for initial set-up. The lights do not work during day but if anyone comes close to the cupboard in the evening, the lights come on and most visitors enjoy the experience! The sensor is easy to install and adjust. Works as expected.
S**L
Sensitivity is very low.!!!
The Sensitivity and motion detection is very poor. Other functionalities such as timer and switching function is working fine.Not recommended..!! Try another model or brand.
G**H
Bad quality
Don’t ever buy this product try to get different brand with warranty in case any issue so you can return. The company claim sensor range is 12meter but it’s not even working for 3meter. I bought two only used one and got bad result and tried to return second one but company is saying no return. Avoid buying this brand.
Z**6
Reliable and durable
I had bought a similar item five years back. It had worked well all these years, and when the need arose for another I had no difficulty in deciding what to buy. This device is accurate, it is customisable and sending direction can be adjusted to a large degree.
D**K
Not Bad
The media could not be loaded. It has been working fine for over a year but the sensor range is not good enough. Of the two purchased, one is placed in the courtyard and the other in a hall with access from most of the rooms. This room lacks daylight. It is set to turn on only when someone enters. Both have been working so far without any other issues.
K**D
No Problem.
When I bought the item I was mentally prepared it must be Chiness product for the money I am paying I am not expecting an item studded with diamonds.That besides the point. This is my third buy and is working as I expected. I put it inside the shower Cubical so when we get it the light switches on automatically. It serves for me.Not sure how long it works. For me if it works for 6 months it is ok. Spent 600 so 100 a month. Twice bath four family members so 240 on and offs a month. It is ok. I get my money worth.Thanks.
Trustpilot
1 month ago
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