---
product_id: 64722851
title: "BT31W PIR Sensor Motion Sensor Energy Saving Motion Detector Wall Mounted"
brand: "blackt electrotech"
price: "AR$33203"
currency: ARS
in_stock: true
reviews_count: 9
category: "Blackt Electrotech"
url: https://www.desertcart.com.ar/products/64722851-bt31w-pir-sensor-motion-sensor-energy-saving-motion-detector-wall
store_origin: AR
region: Argentina
---

# 1200W max load capacity 360° ceiling & 180° wall detection Adjustable sensitivity 1-8m & brightness 0-2000 Lux BT31W PIR Sensor Motion Sensor Energy Saving Motion Detector Wall Mounted

**Brand:** blackt electrotech
**Price:** AR$33203
**Availability:** ✅ In Stock

## Summary

> 🚀 Elevate your space with motion-sensing brilliance — never miss a beat, save every watt!

## Quick Answers

- **What is this?** BT31W PIR Sensor Motion Sensor Energy Saving Motion Detector Wall Mounted by blackt electrotech
- **How much does it cost?** AR$33203 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/products/64722851-bt31w-pir-sensor-motion-sensor-energy-saving-motion-detector-wall)

## 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 & Seamless:** Sleek 12x12x6.5 cm design with adjustable mounting height fits effortlessly into any space.
- • **Panoramic Coverage:** 360° ceiling and 180° wall detection captures every movement in hallways, closets, and more.
- • **Smart Energy Saver:** Automatically powers down when no motion is detected, slashing your electricity bills.
- • **Precision Detection:** Customizable sensitivity and brightness ensure zero false alarms and perfect activation.
- • **Heavy-Duty Compatibility:** Supports up to 1200W incandescent and 300W LED lighting for versatile setups.

## Overview

The Blackt Electrotech BT31W is a wall-mounted PIR motion sensor designed for energy-efficient automation and security. Featuring adjustable sensitivity (1-8m) and brightness (0-2000 Lux), it offers wide 360° ceiling and 180° wall detection coverage. With a high load capacity of 1200W for incandescent and 300W for LED lights, it supports diverse lighting needs. Compact and easy to install at 2-4 meters height, it comes backed by an 18-month warranty, making it a reliable choice for residential and commercial spaces.

## Description

Blackt Electrotech : BT31W PIR Sensor Motion Sensor Energy Saving Motion Detector Wall Mounted : desertcart.in: Home Improvement

Review: Works as it should be AWESOME product! - Awesome product. Works perfectly well Spend some time in the instruction manual to understand the setting Same like the sensors seen in Germany Keep up the Awesome work guys
Review: An Impressive PIR Motion Sensor Which Can Detect Motions of Heat Emitting Bodies - An impressive PIR (Passive Infrared) motion sensor. Has a very good response time. Triggers the sensor when a heat emitting body moves in its detection field (works fine for 160+ degree coverage & up to 10-11 meters distance). A problem which I noticed was that minor motions, even human, are ignored and if the device is connected to a light in a room you will have to make serious motions between the set time period or else the sensor won't trigger. So if you are powering a light source with this sensor in a computer room you will have to wave your hand or make some sort of motion within the set time delay or else the sensor will trigger off.

## Features

- 🌟 [Automatic Energy Saving]: Equipped with a timer function to automatically turn off the sensor when no motion is detected, reducing electricity usage significantly.
- 🔍 [Adjustable Sensitivity & Brightness]: Sensitivity range adjustable from 1 to 8 meters, with light brightness customizable between 0 to 2000 Lux for accurate detection without false alarms. Designed for seamless integration with an installation height of 2-4 meters.
- 📏 [Wide Detection Angle]: Offers 360° ceiling and 180° wall detection, making it ideal for areas like hallways, bathrooms, closets, and corridors.
- ⚡ [High Load Capacity]: Supports up to 1200W for incandescent and 300W for LED lights, suitable for various lighting setups.
- 🔍 [Compact & Adjustable Design]: Designed for seamless integration into any space with a compact size of 12x12x6.5 cm and an adjustable installation height of 2-4 meters.
- 🛡️ [18-Month Warranty]: Backed by 18 months of manufacturing warranty for reliable, worry-free usage.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00ZOZI17A |
| Battery Description | Battery not included |
| Best Sellers Rank | #2,750 in Home Improvement ( See Top 100 in Home Improvement ) #6 in Motion Detectors |
| Brand | Blackt Electrotech |
| Colour | White |
| Compatible Devices | Light, Fan, Bulb, CFL |
| Country of Origin | India |
| Generic Name | MOTION SENSOR |
| Included Components | Nuts |
| Item Weight | 200 g |
| Item model number | BT-31 |
| Manufacturer | Blackt Electrotech, Blackt Electrotech |
| Maximum Range | 12 metres |
| Mounting Type | Wall Mount |
| Net Quantity | 1.00 Count |
| Packer | Blackt Electrotech |
| Power Source | Corded Electric |
| Product Dimensions | 9D x 8W x 8H Centimeters |
| Recommended Uses For Product | Residential Security, Commercial Security, Automation, Energy Management |

## Product Details

- **Brand:** Blackt Electrotech
- **Colour:** White
- **Item Weight:** 200 Grams
- **Maximum Range:** 12 metres
- **Power Source:** Corded Electric

## Images

![BT31W PIR Sensor Motion Sensor Energy Saving Motion Detector Wall Mounted - Image 1](https://m.media-amazon.com/images/I/61oZzwTwcdL.jpg)

## Available Options

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

## Questions & Answers

**Q: Can i connect it to a tv? and turn it on during day too?**
A: There’s no point connecting this to a TV as it doesn’t have an exact switch-off time so you may have a situation when it switches off while you are still watching the TV (and you will have to move a bit for it to re start and that can take time coming back to the same channel) and on the other hand it can be running when you even leave the room, depending on how much time you have set it up for. Turning it on during the day is also a challenge but you could cover it with a dark cloth to switch it on but then that’s not an automatic switching on.

**Q: how is the connections done.to the cfl bulb?**
A: Dear Kabir, The electrical connection of the Motion Sensor will be in series after switch , and it cn be use for any type of light , It works satisfactory and product is OKEY.

**Q: Can it sense motion of stray cats that enter balcony and dirty the area?**
A: since the body area of cats is much small it may not sence thermal radiation may not be suffeient

**Q: Can it be exposed to direct sunlight during daytime?**
A: Sunlight adjustment in sensor

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works as it should be AWESOME product!
*by B***U on 30 October 2025*

Awesome product. Works perfectly well Spend some time in the instruction manual to understand the setting Same like the sensors seen in Germany Keep up the Awesome work guys

### ⭐⭐⭐⭐ An Impressive PIR Motion Sensor Which Can Detect Motions of Heat Emitting Bodies
*by R***C on 1 September 2018*

An impressive PIR (Passive Infrared) motion sensor. Has a very good response time. Triggers the sensor when a heat emitting body moves in its detection field (works fine for 160+ degree coverage & up to 10-11 meters distance). A problem which I noticed was that minor motions, even human, are ignored and if the device is connected to a light in a room you will have to make serious motions between the set time period or else the sensor won't trigger. So if you are powering a light source with this sensor in a computer room you will have to wave your hand or make some sort of motion within the set time delay or else the sensor will trigger off.

### ⭐⭐⭐⭐⭐ Very good
*by Y***I on 29 December 2025*

Achcha hai

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*Product available on Desertcart Argentina*
*Store origin: AR*
*Last updated: 2026-02-21*