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🚀 Elevate your space with motion-activated brilliance—never waste energy or miss a moment!
The Blackt Electrotech BT31C is a ceiling-mounted PIR motion sensor offering a 7-meter detection range and 360° sensing angle. It features customizable off-delay timing (10 seconds to 7 minutes) and adjustable ambient light sensitivity (3 to 2000 lux), ensuring precise and energy-efficient activation of various lighting appliances. Designed for residential and commercial use, it supports LEDs, incandescent, fluorescent lamps, and more. Easy to install and backed by a 2-year warranty, this sensor is a reliable, smart upgrade for any space aiming to optimize lighting control and energy savings.
| ASIN | B0143JR3MG |
| Antenna Location | Residential and Commercial Spaces (Homes, Offices, Shops, Hospitals, Corridors, Bathrooms, Parking Areas) |
| Battery Description | Battery not included |
| Best Sellers Rank | #2,294 in Home Improvement ( See Top 100 in Home Improvement ) #4 in Motion Detectors |
| Brand | Blackt Electrotech |
| Built-In Media | manaul |
| Colour | white |
| Compatible Devices | Light, Fan |
| Country of Origin | China |
| Customer Reviews | 4.0 out of 5 stars 3,298 Reviews |
| Frequency | 50 Hz |
| Importer Contact Information | Blackt Electrotech |
| Item Dimensions D x W x H | 100D x 30W x 100H Millimeters |
| Item Type Name | Motion sensor |
| Item Weight | 160 Grams |
| Manufacturer | Blackt Electrotech, Blackt Electrotech |
| Manufacturer Contact Information | Blackt Electrotech |
| Maximum Range | 7 metres |
| Mfr Part Number | BT-31C |
| Model Number | BT-31C |
| Mounting Type | Ceiling Mount |
| Number of Items | 1 |
| Packer Contact Information | Blackt Electrotech |
| Power Source | AC |
| UPC | 710918665283 |
| Unit Count | 1 Count |
R**N
Worth every penny
Bought this is June 2017, worked very well for 9 years. just now in July 2026 its started malfunction. Now planning to buy the same product to replace the old one.
S**G
Good Product
Received it yesterday (14-Dec-2020).. Bought it as a try out to check its quality before buying more. Connected it to the common hand-wash area in the hall as kids mostly forget to switch off the lamp there. Working perfectly as expected. I have not tried it our in the open for day night auto detection yet. That;s why rating it as at 4 as of now. Will update the status of its working quality in the coming months.
G**N
Good
It does not function as per the requirement. Light comes on auto ON/OFF during day time also. Day/night setting not functioning. Hence request return of the item. I am reviewing again after completing replacement. Tested and found satisfactory. Thank you
M**U
Value for money
Amazing product work really well. Good quality plastic material
U**H
Stopped working in a day.
It stopped working after one day of use. Would not recommend.
S**M
works well but for around a year or so. Warranty is useless.
I have purchased 10s of these devices for my house. The sensor works well for about a year or so and then stop working. With me it keeps the light on without any motion. The lights is switched off for a second and then opens again even if there is no one. I have replaced the sensor almost 3 times. Warranty is for 2 years, but when i contacted the company they asked me to record a video of fault and then courier the device to them and then they will check and send a replacement after a month. The courier cost was more than 200 and I found it to be more of a hassle than to buy a new one.
S**L
Adjustability
Highly recommended light sensor. Love its configuration, one can customise both daylight sensitivity and time. I have routed my entire parking lights through this sensor.
D**I
Best product
Good
Trustpilot
2 weeks ago
5 days ago