--- product_id: 441412967 title: "Blackt Electrotech: (BT31M1) Microwave/Radar Motion Sensor Occupancy Motion Detector Small Sq Shape 18 Months warrenty (2)" brand: "blackt electrotech" price: "£20.88" currency: GBP in_stock: true category: "Blackt Electrotech" url: https://www.desertcart.co.uk/products/441412967-blackt-electrotech-bt31m1-microwave-radar-motion-sensor-occupancy-motion-detector store_origin: GB region: United Kingdom --- # 1200W max load capacity 8m adjustable detection range 360° ceiling & 180° wall coverage Blackt Electrotech: (BT31M1) Microwave/Radar Motion Sensor Occupancy Motion Detector Small Sq Shape 18 Months warrenty (2) **Brand:** blackt electrotech **Price:** £20.88 **Availability:** ✅ In Stock ## Summary > 🚀 Elevate your space with smart motion sensing — never waste energy or miss a beat! ## Quick Answers - **What is this?** Blackt Electrotech: (BT31M1) Microwave/Radar Motion Sensor Occupancy Motion Detector Small Sq Shape 18 Months warrenty (2) by blackt electrotech - **How much does it cost?** £20.88 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/441412967-blackt-electrotech-bt31m1-microwave-radar-motion-sensor-occupancy-motion-detector) ## Best For - blackt electrotech enthusiasts ## Why This Product - Trusted blackt electrotech brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Compact & Discreet:** Small 12x12x6.5 cm design fits behind switchboards or POP sheets for invisible, seamless integration. - • **Smart Energy Saver:** Automatically powers off devices when no motion is detected, slashing your electricity bills. - • **All-Around Coverage:** 360° ceiling and 180° wall detection ensures no movement goes unnoticed in any room. - • **Precision Detection:** Customizable sensitivity up to 8 meters and brightness control up to 2000 Lux for zero false alarms. - • **Peace of Mind Warranty:** Backed by an 18-month warranty, guaranteeing reliable performance and long-term security. ## Overview The Blackt Electrotech BT31M1 Microwave/Radar Motion Sensor offers advanced 360° and 180° detection with adjustable sensitivity up to 8 meters and brightness control up to 2000 Lux. Supporting up to 1200W load, it automatically switches off lights and appliances when no motion is detected, optimizing energy use. Its compact design allows discreet installation, backed by an 18-month warranty for dependable, hassle-free operation. ## Description There is a timer function,when people are away and no more moving in the room, microwave will stop working automatically to save electricity. When you come back again, it will turn ON. ## Features - 🌟 [Automatic Energy Saving]: Automatically turns off lights or appliances when no motion is detected, saving electricity effortlessly. - 🔍 [Adjustable Sensitivity & Brightness]: Sensitivity can be adjusted between 1 to 8 meters, and light brightness is customizable from 0 to 2000 Lux, ensuring accurate detection without false triggers. - 📏 [Wide Detection Angle]: Provides 360° ceiling and 180° wall detection, perfect for spaces like hallways, bathrooms, closets, and corridors. - ⚡ [High Load Capacity]: Handles up to 1200W for incandescent lights and 300W for LED lights, compatible with most lighting setups. - 🔧 [Compact & Versatile Design]: Small size (12x12x6.5 cm) allows installation inside switchboards or behind POP sheets. The sensor detects motion even when concealed, ensuring seamless functionality. - 🛡️ [Reliable with Warranty]: Comes with an 18-month manufacturing warranty, ensuring dependable and worry-free usage. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09W2VZ7HZ | | Antenna Location | Residential Security, Commercial Security, Automation, Energy Management | | Battery Description | battery not included | | Best Sellers Rank | #2,848 in Home Improvement ( See Top 100 in Home Improvement ) #5 in Motion Detectors | | Brand | Blackt Electrotech | | Built-In Media | Caps | | Colour | white | | Compatible Devices | Lights, Appliances | | Country of Origin | China | | Customer Reviews | 4.1 4.1 out of 5 stars (943) | | Frequency | 50 Hz | | Importer Contact Information | Blackt Electrotech | | Item Dimensions D x W x H | 60D x 40W x 60H Millimeters | | Item Type Name | Moi | | Item Weight | 160 Grams | | Manufacturer | Blackt Electrotech, Blackt Electrotech | | Manufacturer Contact Information | Blackt Electrotech | | Manufacturer Warranty Description | 18 months warranty against manufacturing defects | | Maximum Range | 8 metres | | Mfr Part Number | BT31M1 | | Model Number | BT31m1 | | Mounting Type | Adhesive Mount | | Number of Items | 2 | | Packer Contact Information | Blackt Electrotech | | Power Source | Corded Electric | | Unit Count | 1.00 Count | ## Product Details - **Brand:** Blackt Electrotech - **Colour:** white - **Item Weight:** 160 Grams - **Maximum Range:** 8 metres - **Power Source:** Corded Electric ## Images ![Blackt Electrotech: (BT31M1) Microwave/Radar Motion Sensor Occupancy Motion Detector Small Sq Shape 18 Months warrenty (2) - Image 1](https://m.media-amazon.com/images/I/51HrsskDFlL.jpg) ![Blackt Electrotech: (BT31M1) Microwave/Radar Motion Sensor Occupancy Motion Detector Small Sq Shape 18 Months warrenty (2) - Image 2](https://m.media-amazon.com/images/I/31X8qaKcdPL.jpg) ![Blackt Electrotech: (BT31M1) Microwave/Radar Motion Sensor Occupancy Motion Detector Small Sq Shape 18 Months warrenty (2) - Image 3](https://m.media-amazon.com/images/I/71oWF4oGwfL.jpg) ![Blackt Electrotech: (BT31M1) Microwave/Radar Motion Sensor Occupancy Motion Detector Small Sq Shape 18 Months warrenty (2) - Image 4](https://m.media-amazon.com/images/I/51HQEyPN9NL.jpg) ![Blackt Electrotech: (BT31M1) Microwave/Radar Motion Sensor Occupancy Motion Detector Small Sq Shape 18 Months warrenty (2) - Image 5](https://m.media-amazon.com/images/I/41L1niTun2L.jpg) ## Available Options This product comes in different **Number Of Items** options. ## Frequently Bought Together - Blackt Electrotech: (BT31M1) Microwave/Radar Motion Sensor Occupancy Motion Detector Small Sq Shape 18 Months warrenty (2) - FEDUS 220v -110 DB Industrial Security Sound Alarm Buzzer Siren Hooter Security Loud Sound Alarm for Bank, Hospitals, Mines, fire Alarm, Security System, Ambulance,Pack-1 Black --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/441412967-blackt-electrotech-bt31m1-microwave-radar-motion-sensor-occupancy-motion-detector](https://www.desertcart.co.uk/products/441412967-blackt-electrotech-bt31m1-microwave-radar-motion-sensor-occupancy-motion-detector) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-09-22*