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🚀 Light up your space only when it matters — smart, sleek, and always on point!
The Blackt Electrotech BT31C is a ceiling-mounted PIR motion sensor designed for professional and residential spaces. It offers a 7-meter detection range with a full 360° sensing angle, adjustable delay from 10 seconds to 7 minutes, and customizable ambient light sensitivity (3–2000 lux). Compatible with various lighting types including LEDs, incandescent, and CFLs, it ensures energy-efficient automatic lighting control. Easy to install and backed by a 2-year warranty, this sensor delivers reliable, smart automation that reduces energy consumption while enhancing convenience and security.
| ASIN | B0143JR3MG |
| Antenna Location | Residential and Commercial Spaces (Homes, Offices, Shops, Hospitals, Corridors, Bathrooms, Parking Areas) |
| Battery Description | Battery not included |
| Best Sellers Rank | #1,910 in Home Improvement ( See Top 100 in Home Improvement ) #5 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 3,215 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 |
| Maximum Range | 7 metres |
| Mfr Part Number | BT-CT01 |
| Model Number | BT-31C |
| Mounting Type | Ceiling Mount |
| Packer Contact Information | Blackt Electrotech |
| Power Source | AC |
| UPC | 710918665283 |
| Unit Count | 1 Count |
J**H
Good
Items is good
B**H
Good
Good sensor, work perfectly, I have used in my Car Shed, it's working perfectly. Range is good.
D**.
Product is not working properly
Product is not working
V**R
Nice combination
I fixed the sensor along with 50 watts led flood light and this combination works perfectly for me as any intrusion highlighted.
S**E
Very short range
It works only when we are very close aound 5 ft. It should give at least 15 to 20 ft range.
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.
M**A
Sensor is working fine.
I am reviewing this after almost one month of usage. Even though I mounted the device vertically its object capture angle is very good. Our LED strips connected to this turn on in a flash the moment it senses movement. Nice product. Value for money . Auto switch on and off and motion sensor is perfect. Also there is a mode to select that the auto switch will work only when it's dark. So when it's bright and sunny the auto switch will be in sleep mode .
A**H
Works
Works
Trustpilot
1 month ago
3 weeks ago