---
product_id: 186894312
title: "Quick Sense BS039B | PIR Motion Sensor Light Switch | 180° Infrared Wall Switch | Adjustable Delay & LUX | Indoor/Outdoor Use | Neutral Wire Required | 110–240V AC | Pack of 6"
brand: "quick sense"
price: "HK$575"
currency: HKD
in_stock: true
reviews_count: 3
category: "Quick Sense"
url: https://www.desertcart.hk/products/186894312-quick-sense-bs039b-pir-motion-sensor-light-switch-180-infrared
store_origin: HK
region: Hong Kong
---

# 3–2000 LUX light sensitivity 7s–8min adjustable delay 180° PIR motion detection Quick Sense BS039B | PIR Motion Sensor Light Switch | 180° Infrared Wall Switch | Adjustable Delay & LUX | Indoor/Outdoor Use | Neutral Wire Required | 110–240V AC | Pack of 6

**Brand:** quick sense
**Price:** HK$575
**Availability:** ✅ In Stock

## Summary

> 💡 Light up smarter, not harder — automate your space with Quick Sense BS039B!

## Quick Answers

- **What is this?** Quick Sense BS039B | PIR Motion Sensor Light Switch | 180° Infrared Wall Switch | Adjustable Delay & LUX | Indoor/Outdoor Use | Neutral Wire Required | 110–240V AC | Pack of 6 by quick sense
- **How much does it cost?** HK$575 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/186894312-quick-sense-bs039b-pir-motion-sensor-light-switch-180-infrared)

## Best For

- quick sense enthusiasts

## Why This Product

- Trusted quick sense brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Tailored Illumination Timing:** Customize your lighting duration from 7 seconds up to 8 minutes, resetting with continuous motion to keep spaces perfectly lit.
- • **Smart Ambient Light Adaptation:** Adjust LUX sensitivity to prevent unnecessary activation during daylight, optimizing energy savings effortlessly.
- • **Versatile Indoor & Outdoor Ready:** Robust design supports up to 500W load, ideal for homes, offices, garages, and commercial corridors with wide 12m detection range.
- • **Bulk Value Pack for Smart Scaling:** Get 6 units in one pack—perfect for large-scale installations that elevate your space’s automation game and cut energy costs.
- • **Seamless Motion-Activated Control:** Automatically powers lights ON/OFF with precise 180° infrared sensing for ultimate convenience and security.

## Overview

The Quick Sense BS039B is a high-performance PIR motion sensor light switch featuring 180° infrared detection, adjustable delay from 7 seconds to 8 minutes, and customizable LUX sensitivity (3–2000). Designed for both indoor and outdoor use, it supports up to 500W lighting loads on standard 110–240V AC power. This pack of 6 units offers an energy-efficient, scalable solution for residential and commercial lighting automation, enhancing security and convenience while reducing electricity consumption.

## Description

Product Description PIR Motion Sensor This is an intelligent energy-saving device that automatically controls electrical appliances using passive infrared (PIR) technology. Energy Control The sensor detects human motion within its 180-degree detection field and automatically switches connected loads on/off based on movement detection, ambient light levels, and adjustable time delays. It combines motion sensing with photosensitive control to prevent operation during daylight hours when not needed. Applications & Product Uses Residential Security: Bedroom lighting, hallway illumination, bathroom automation Commercial Security: Office lighting, corridor automation, warehouse illumination Energy Management: Automatic lighting control to reduce electricity consumption Home Automation: Integration with existing lighting systems for smart control Auto lighting control for corridors, stairs, bathrooms, basements, warehouses, garages, closets Advertisement lights and commercial signage automation Garden lights and outdoor pathway illumination Street lighting automation systems Energy saving applications in hotels, offices, and residential buildings Industrial Applications Automatic lighting control helps cut down electricity usage by turning lights on and off as needed, ensuring energy efficiency, lower power bills, and smarter lighting management in any space.

Review: Very easy to install - Its great deal to trade with this orginization
Review: V nice - You can set the timer of how long it shd remain on . It's nice . I have installed few and yet I have to install others .

## Features

- 🕹️ MOTION-ACTIVATED AUTOMATION – Lights turn ON automatically when motion is detected and OFF after preset delay. Ideal for energy-saving and safety in homes and offices.
- ⏱️ ADJUSTABLE TIME DELAY – Customize delay from 7 seconds to 8 minutes. The timer resets when continuous motion is detected, ensuring uninterrupted illumination.
- 🌞 LUX SENSOR CONTROL – Adjust the light sensitivity range from 3 to 2000 LUX. Use during daylight or low-light conditions as per your preference.
- 📦 VALUE PACK OF 6 – Cost-effective pack for large-scale installation in multiple rooms, corridors, staircases, garages, or commercial setups.
- ⚙️ EASY INSTALLATION (NEUTRAL REQUIRED) – Wall-mountable unit for indoor/outdoor use. Includes screws and manual. Set LUX knob to SUN during daytime testing.
- 📶 INFRARED TECHNOLOGY – Uses high-sensitivity infrared detection to sense human body radiation. Lights turn ON when motion is detected and OFF when the area is clear.
- 🌤️ PHOTOSENSITIVE CONTROL – Prevents lights from turning ON during daylight or well-lit conditions. Adjustable threshold ensures optimal operation in any ambient lighting.
- 🌧️ INDOOR & OUTDOOR COMPATIBLE – Ideal for bathrooms, staircases, garages, corridors, and entryways. 180° wide-angle coverage with up to 12m detection range.
- 💡 HIGH LOAD COMPATIBILITY – Supports up to 500W for incandescent/LED lighting. Operates on standard 110–240V AC, 50/60Hz frequency.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B083BKMDZH |
| Antenna Location | Residential and Commercial Security, Automation, Energy Management |
| Battery Description | Battery not included |
| Best Sellers Rank | #37,403 in Home Improvement ( See Top 100 in Home Improvement ) #65 in Motion Detectors |
| Brand | Quick Sense |
| Colour | White |
| Compatible Devices | Lamp, Incandescent Bulb, Fluorescent Lamp, Spotlight, Transformer, Small Electrical Appliance |
| Country of Origin | India |
| Customer Reviews | 4.3 out of 5 stars 21 Reviews |
| Item Dimensions D x W x H | 5D x 5W x 5H Centimeters |
| Item Type Name | QS-09 |
| Item Weight | 0.1 Kilograms |
| Manufacturer | Quick Sense, Quick Sense: Customer Support Number - 9560248290 |
| Manufacturer Contact Information | Quick Sense: Customer Support Number - 9560248290 |
| Manufacturer Warranty Description | 12 Months Warranty Against Manufacturing Defects |
| Maximum Range | 12 metres |
| Mfr Part Number | Qs-09x6 |
| Mounting Type | Wall Mount |
| Packer Contact Information | QUICK SENSE INNOVATIONS - 9560248290 |
| Power Source | Electrical |
| Unit Count | 1 Count |

## Product Details

- **Brand:** Quick Sense
- **Colour:** White
- **Item Weight:** 0.1 Kilograms
- **Maximum Range:** 12 metres
- **Power Source:** Electrical

## Images

![Quick Sense BS039B | PIR Motion Sensor Light Switch | 180° Infrared Wall Switch | Adjustable Delay & LUX | Indoor/Outdoor Use | Neutral Wire Required | 110–240V AC | Pack of 6 - Image 1](https://m.media-amazon.com/images/I/61eBxBp3D0L.jpg)
![Quick Sense BS039B | PIR Motion Sensor Light Switch | 180° Infrared Wall Switch | Adjustable Delay & LUX | Indoor/Outdoor Use | Neutral Wire Required | 110–240V AC | Pack of 6 - Image 2](https://m.media-amazon.com/images/I/51q8UEN6JuL.jpg)
![Quick Sense BS039B | PIR Motion Sensor Light Switch | 180° Infrared Wall Switch | Adjustable Delay & LUX | Indoor/Outdoor Use | Neutral Wire Required | 110–240V AC | Pack of 6 - Image 3](https://m.media-amazon.com/images/I/51oQhMO1h7L.jpg)
![Quick Sense BS039B | PIR Motion Sensor Light Switch | 180° Infrared Wall Switch | Adjustable Delay & LUX | Indoor/Outdoor Use | Neutral Wire Required | 110–240V AC | Pack of 6 - Image 4](https://m.media-amazon.com/images/I/51haQuSbJVL.jpg)
![Quick Sense BS039B | PIR Motion Sensor Light Switch | 180° Infrared Wall Switch | Adjustable Delay & LUX | Indoor/Outdoor Use | Neutral Wire Required | 110–240V AC | Pack of 6 - Image 5](https://m.media-amazon.com/images/I/71B6bA0eAEL.jpg)

## Questions & Answers

**Q: Can this be attached to Quick sense hooter for burglar alarm**
A: Yes can connect, will work with hooter, but it not advisable to connect

**Q: Can this work on 12v dc?**
A: No, 220v Ac

**Q: What It's use**
A: To automatically switched ON and OFF the lights etc. of bathroom, stairs, kitchen etc. if any movement of any person is detected.
Thanks

**Q: How to use this sensor**
A: It is not good. It doesn't work as mentioned.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Very easy to install
*by H***P on 9 January 2026*

Its great deal to trade with this orginization

### ⭐⭐⭐⭐⭐ V nice
*by J***H on 5 August 2023*

You can set the timer of how long it shd remain on . It's nice . I have installed few and yet I have to install others .

### ⭐⭐⭐ Poor quality
*by M***N on 28 October 2022*

Doesn’t last long and unpredictable

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**Shop now:** [https://www.desertcart.hk/products/186894312-quick-sense-bs039b-pir-motion-sensor-light-switch-180-infrared](https://www.desertcart.hk/products/186894312-quick-sense-bs039b-pir-motion-sensor-light-switch-180-infrared)

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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-03-18*