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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 | #2,112 in Home Improvement ( See Top 100 in Home Improvement ) #3 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 3,218 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.
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
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.
V**R
Sensing failed when person is under sensor
Sensor sensing good but if person under sensor it will automatically off when it reaches to time based on our setting.so not recommended to buy
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
2 weeks ago