---
product_id: 143831286
title: "(BT31M1) Microwave/Radar Motion Sensor Occupancy Motion Detector Small Sq Shape 18 Months warrenty (1)"
brand: "blackt electrotech"
price: "149 kr"
currency: NOK
in_stock: true
reviews_count: 8
url: https://www.desertcart.no/products/143831286-bt31m1-microwave-radar-motion-sensor-occupancy-motion-detector-small-sq
store_origin: NO
region: Norway
---

# 1200W max load capacity 360° ceiling & 180° wall detection Adjustable 1-8m sensitivity (BT31M1) Microwave/Radar Motion Sensor Occupancy Motion Detector Small Sq Shape 18 Months warrenty (1)

**Brand:** blackt electrotech
**Price:** 149 kr
**Availability:** ✅ In Stock

## Summary

> 🚀 Upgrade your space with smart sensing that works invisibly!

## Quick Answers

- **What is this?** (BT31M1) Microwave/Radar Motion Sensor Occupancy Motion Detector Small Sq Shape 18 Months warrenty (1) by blackt electrotech
- **How much does it cost?** 149 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.no](https://www.desertcart.no/products/143831286-bt31m1-microwave-radar-motion-sensor-occupancy-motion-detector-small-sq)

## 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

- • **Seamless 360° Coverage:** Wide detection angles cover every corner—perfect for hallways, bathrooms, and closets.
- • **Peace of Mind Guaranteed:** Backed by an 18-month warranty, ensuring reliable, long-term operation.
- • **Effortless Energy Savings:** Automatically powers off lights/appliances when no motion is detected, slashing your electricity bills.
- • **Compact, Concealed, and Powerful:** Discreet small square design fits inside switchboards or behind walls without sacrificing performance.
- • **Precision Detection, Zero False Alarms:** Customizable sensitivity and brightness settings ensure flawless motion sensing tailored to your space.

## Overview

The Blackt Electrotech BT31M1 is a compact microwave/radar motion sensor designed for precise indoor occupancy detection. It features adjustable sensitivity up to 8 meters, wide 360° ceiling and 180° wall detection angles, and supports high load capacities up to 1200W for incandescent and 300W for LED lights. Its small form factor allows discreet installation behind walls or switchboards, while its advanced radar technology detects motion through thin non-metallic barriers. With an 18-month warranty, it offers dependable energy-saving automation for modern smart homes and offices.

## Description

The Blackt Electrotech BT31M1 is designed with cutting-edge microwave/radar technology to ensure highly accurate motion detection. Unlike traditional infrared sensors, this sensor can detect movement through thin non-metallic objects like glass, plastic, and thin walls, making it perfect for versatile indoor applications. Its small square shape ensures a discreet installation without compromising performance.

## 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 |
|---------------|-------|
| Antenna Location | Residential Security, Automation, Energy Management |
| Asin | B07PNL65WN |
| Battery Description | battery not included |
| Best Sellers Rank | #2,096 in Home Improvement (See Top 100 in Home Improvement) #4 in Motion Detectors |
| Brand | Blackt Electrotech |
| Built In Media | Caps |
| Colour | white |
| Compatible Devices | Appliances |
| Country Of Origin | China |
| Customer Reviews | 4.1 4.1 out of 5 stars (940) 4.1 out of 5 stars |
| Frequency | 50 Hz |
| Importer Contact Information | Blackt Electrotech |
| Item Dimensions D X W X H | 60D x 40W x 60H Millimeters |
| Item Type Name | Motion sensor |
| Item Weight | 80 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 | BT-31490 |
| Model Number | BT31m1 |
| Mounting Type | Wall Mount |
| Number Of Items | 1 |
| Packer Contact Information | Blackt Electrotech |
| Power Source | Corded Electric |
| Unit Count | 1.00 Count |
| Upc | 710918665535 |
| Upper Temperature Rating | 45 Degrees Celsius |

## Product Details

- **Brand:** Blackt Electrotech
- **Colour:** white
- **Item Weight:** 80 Grams
- **Maximum Range:** 8 metres
- **Power Source:** Corded Electric

## Images

![(BT31M1) Microwave/Radar Motion Sensor Occupancy Motion Detector Small Sq Shape 18 Months warrenty (1) - Image 1](https://m.media-amazon.com/images/I/51NzEKCdFsL.jpg)

## Available Options

This product comes in different **Number Of Items** options.

## Questions & Answers

**Q: Does it swich OFF when motion stops**
A: if there no motion it will turn off after presetting time i.e. 10 sec to 12 min

**Q: I need a timer switch of load 3kv for storage water geyser**
A: available on amazon, check

**Q: Is it compatible with cilining fan ?**
A: There is no fan or anything, you have to connect whatever you want as load, with operating voltage of 220V AC, load as in the label.

**Q: Why not use the motion sensor bulbs? What is the advatage of this over those bulbs?**
A: This can be used to switch on anything, not only for lights, and this is a more accurate and fast device.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Trusted product
*by  on Reviewed in India 28 May 2026*

Good product as per price, working well.

### ⭐⭐⭐⭐ Good one
*by  on Reviewed in India 27 April 2026*

Product is good...but with fan on it doesn't work...should be given on off button as well...

### ⭐⭐⭐⭐⭐ Working properly
*by  on Reviewed in India 20 July 2026*

Working properly

## Frequently Bought Together

- Blackt Electrotech: (BT31M1) Microwave/Radar Motion Sensor Occupancy Body Motion Detector Small Sq Shape 18 Months warrenty
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**Shop now:** [https://www.desertcart.no/products/143831286-bt31m1-microwave-radar-motion-sensor-occupancy-motion-detector-small-sq](https://www.desertcart.no/products/143831286-bt31m1-microwave-radar-motion-sensor-occupancy-motion-detector-small-sq)

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*Product available on Desertcart Norway*
*Store origin: NO*
*Last updated: 2026-10-03*