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⚡ Stay ahead with motion-activated brilliance—because your space deserves smart energy!
The Blackt Electrotech BT31M1 is a compact, wall-mount microwave radar motion sensor designed for smart occupancy detection. Featuring adjustable sensitivity up to 8 meters, a 360° ceiling and 180° wall detection angle, and customizable brightness and timer settings, it ensures efficient, automatic lighting control. With an 18-month warranty and energy-saving capabilities that reduce electricity use by up to 85%, it’s ideal for modern homes and offices seeking intelligent automation.
| ASIN | B07PNL65WN |
| ASIN | B07PNL65WN |
| Antenna Location | Residential Automation, Energy Management |
| Battery Description | Battery not included |
| Brand | Blackt Electrotech |
| Color | White |
| Compatible Devices | Lighting Systems, Appliances |
| Customer Reviews | 4.1 4.1 out of 5 stars (808) |
| Customer reviews | 4.1 4.1 out of 5 stars (808) |
| Date First Available | 14 March 2019 |
| Frequency | 50 Hz |
| Item Weight | 80 Grams |
| Item model number | BT31m1 |
| Manufacturer | Blackt Electrotech |
| Manufacturer | Blackt Electrotech |
| Maximum Range | 8 Meters |
| Mfr Part Number | BT-31490 |
| Model Number | BT31m1 |
| Mounting Type | Wall Mount |
| Power Source | Corded Electric |
| Product Dimensions | 6 x 5 x 3 cm; 80 g |
| UPC | 710918665535 |
| Unit Count | 1.00 Count |
J**H
Product is awesome. Just gave it four stars as when it starts it relays power to the load. Thereby making it unusable with siren systems even light bulb lights up for the durationnof time set.
D**�
I love the operation of the product. It works only when it is dark if you set the LUX sensor appropriately. It turns on immediately when I open the door. However, the timer isn't accurate. Sometimes, it switches off at the set time, and a few other times, it takes a few seconds longer. The device looks a little cheap. The company definitely need an English-speaking employee to correct their English in their manual/instruction. Overall, it's a fantastic product. I will order more of them for all my lights and recommend it to all prospective buyers.
J**H
Very disappointed that Item is not working at all, ordered for replacement as refund option is not available. Vendor must check items before dispatch. In such case negative ratings should be available in Amazon. Edit: received replacement today, sensor working perfectly. Will update review after using few days
V**T
Nice product. Recomended buy.
A**R
It is not working on inverter backup