---
product_id: 76101740
title: "BT31MT Microwave Radar Sensor Switch - Ceiling Mounted Occupancy Motion Detector for Automatic Lighting Control (Slim Size)"
brand: "blackt electrotech"
price: "£12.04"
currency: GBP
in_stock: true
reviews_count: 8
category: "Blackt Electrotech"
url: https://www.desertcart.co.uk/products/76101740-bt31mt-microwave-radar-sensor-switch-ceiling-mounted-occupancy-motion-detector
store_origin: GB
region: Great Britain
---

# 1200W rated load 2-4m ideal install height 360° detection angle BT31MT Microwave Radar Sensor Switch - Ceiling Mounted Occupancy Motion Detector for Automatic Lighting Control (Slim Size)

**Brand:** blackt electrotech
**Price:** £12.04
**Availability:** ✅ In Stock

## Summary

> 🚀 Elevate your space with smart, hands-free lighting control!

## Quick Answers

- **What is this?** BT31MT Microwave Radar Sensor Switch - Ceiling Mounted Occupancy Motion Detector for Automatic Lighting Control (Slim Size) by blackt electrotech
- **How much does it cost?** £12.04 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/76101740-bt31mt-microwave-radar-sensor-switch-ceiling-mounted-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

- • **Slim & Sleek Design:** Ultra-thin profile that integrates invisibly into any ceiling.
- • **Seamless 360° Coverage:** Detect motion from every angle for flawless automation.
- • **Plug & Play Installation:** Simple wiring with L & N power connection—no electrician needed.
- • **Powerhouse Load Capacity:** Supports up to 1200W, perfect for diverse lighting setups.
- • **Customizable Sensitivity & Timing:** Adjust time delay (10s-15min) and light threshold (10-2000 lux) to fit your lifestyle.

## Overview

The Blackt Electrotech Microwave Radar Sensor Switch is a ceiling-mounted, slim-profile occupancy detector operating at 5.8 GHz. It offers 360° motion detection with a 12-meter range, supports up to 1200W load, and features adjustable time delay and light sensitivity settings. Designed for easy installation and energy-efficient automatic lighting control in residential and commercial spaces.

## Description

Product Description Upgrade your lighting control with the Blackt Electrotech Microwave Radar Sensor Switch, a slim and efficient solution for hands-free illumination. Designed for ceiling mounting, this advanced occupancy motion detector automatically switches lights on when it senses movement and turns them off when the area is vacant, ensuring both comfort and energy savings. Slim, Space-Saving Design With its ultra-slim profile, this sensor blends seamlessly into ceilings without affecting your interior aesthetics. The discreet design makes it perfect for use in homes, offices, corridors, staircases, washrooms, and commercial spaces where style and functionality go hand in hand. Easy Installation & Wide Applications The ceiling-mounted design allows for quick installation without complicated wiring. Its wide detection range and adjustable settings make it suitable for residential, commercial, and industrial environments where reliable motion-based lighting control is essential.

Review: Good product - Works well. Good sensitivity. Timer setting little bit dicy but overall good product.
Review: Microwave radar sensor - I brought this 2 months back and till now it is working good.

## Features

- Detection Angle: 360/ Rated Load: 1200Watt/Ideal
- Installation Height: 2 - 4 Meters...This Microwave Motion Sensor Reflects The Latest Development In Interior Lighting Technology And Provides Close To Zero Energy Wastage In Terms Of Lights Being On Unnecessarily./ Hf System : 5.8Ghz Cw Radar,Ism Band
- Adjustable Function: Time Delay (10 Sec To 15 Min), Light Setting (10-2000 Lux)
- Simple in Connection: (Connect : L & N to Power) and (Connect : N & A to Load)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07FDVY9HR |
| Battery Description | Battery not included |
| Best Sellers Rank | #6,721 in Home Improvement ( See Top 100 in Home Improvement ) #15 in Motion Detectors |
| Brand | Blackt Electrotech |
| Built-In Media | Installtion back plat, Screw, manaul |
| Colour | black |
| Compatible Devices | Light, Smart Home Hub, Security System |
| Country of Origin | China |
| Customer Reviews | 4.2 out of 5 stars 186 Reviews |
| Frequency | 5.8 GHz |
| 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 | 12 metres |
| Mfr Part Number | BT-964D |
| Model Number | BT-964D |
| Mounting Type | Panel Mount |
| Packer Contact Information | Blackt Electrotech |
| Power Source | Corded Electric |
| UPC | 710918665016 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** Blackt Electrotech
- **Colour:** black
- **Item Weight:** 160 Grams
- **Maximum Range:** 12 metres
- **Power Source:** Corded Electric

## Images

![BT31MT Microwave Radar Sensor Switch - Ceiling Mounted Occupancy Motion Detector for Automatic Lighting Control (Slim Size) - Image 1](https://m.media-amazon.com/images/I/51NVAytBfEL.jpg)
![BT31MT Microwave Radar Sensor Switch - Ceiling Mounted Occupancy Motion Detector for Automatic Lighting Control (Slim Size) - Image 2](https://m.media-amazon.com/images/I/718QJOVj0kL.jpg)
![BT31MT Microwave Radar Sensor Switch - Ceiling Mounted Occupancy Motion Detector for Automatic Lighting Control (Slim Size) - Image 3](https://m.media-amazon.com/images/I/51jGcfGZaHL.jpg)
![BT31MT Microwave Radar Sensor Switch - Ceiling Mounted Occupancy Motion Detector for Automatic Lighting Control (Slim Size) - Image 4](https://m.media-amazon.com/images/I/71Xc-FxJOFL.jpg)
![BT31MT Microwave Radar Sensor Switch - Ceiling Mounted Occupancy Motion Detector for Automatic Lighting Control (Slim Size) - Image 5](https://m.media-amazon.com/images/I/71q1OqY-nlL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good product
*by T***L on 13 November 2024*

Works well. Good sensitivity. Timer setting little bit dicy but overall good product.

### ⭐⭐⭐⭐ Microwave radar sensor
*by S***. on 22 August 2024*

I brought this 2 months back and till now it is working good.

### ⭐⭐⭐⭐⭐ Quality product
*by G***E on 9 March 2025*

Good durability used one first, then ordered more. Nice perfect sense good.

## Frequently Bought Together

- Blackt Electrotech Microwave Radar Sensor Switch - Ceiling Mounted Occupancy Motion Detector for Automatic Lighting Control (Slim Size)
- Blackt Electrotech: (BT31M1) Microwave/Radar Motion Sensor Occupancy Motion Detector Small Sq Shape 18 Months warrenty (2)
- Blackt Electrotech Microwave Radar Sensor Switch - Ceiling Mounted Occupancy Motion Detector for Automatic Lighting Control (Regular Size)

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*Product available on Desertcart Great Britain*
*Store origin: GB*
*Last updated: 2026-04-23*