---
product_id: 64722850
title: "BT31C : PIR Motion Sensor Ceiling Mounted White Round Shape (2-Year Warranty) (Regular)"
brand: "blackt electrotech"
price: "$31.05"
currency: USD
in_stock: true
reviews_count: 8
category: "Blackt Electrotech"
url: https://www.desertcart.ec/products/64722850-bt31c-pir-motion-sensor-ceiling-mounted-white-round-shape-2
store_origin: EC
region: Ecuador
---

# 10s–7min adjustable off-delay 7m max detection range 360° sensing angle BT31C : PIR Motion Sensor Ceiling Mounted White Round Shape (2-Year Warranty) (Regular)

**Brand:** blackt electrotech
**Price:** $31.05
**Availability:** ✅ In Stock

## Summary

> 🚀 Elevate your space with motion-activated brilliance—never miss a moment in the dark!

## Quick Answers

- **What is this?** BT31C : PIR Motion Sensor Ceiling Mounted White Round Shape (2-Year Warranty) (Regular) by blackt electrotech
- **How much does it cost?** $31.05 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/64722850-bt31c-pir-motion-sensor-ceiling-mounted-white-round-shape-2)

## 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

- • **Smart Energy Saver:** Infrared and photosensitive tech ensure lights only activate in darkness, cutting unnecessary power use.
- • **Precision Motion Detection:** Customize detection distance up to 7 meters and enjoy full 360° coverage for seamless activation.
- • **Tailored Ambient Sensitivity:** Adjust light sensitivity from 3 to 2000 lux to perfectly match any lighting environment.
- • **Universal Appliance Compatibility:** Works flawlessly with LEDs, incandescent, fluorescent lamps, and transformers for versatile setups.
- • **Hassle-Free Installation & Warranty:** Ceiling mount design with easy setup backed by a 2-year warranty for long-term reliability.

## Overview

The Blackt Electrotech BT31C is a ceiling-mounted PIR motion sensor offering a 7-meter detection range and 360° sensing angle. It features customizable settings including detection distance, off-delay time (10 seconds to 7 minutes), and ambient light sensitivity (3–2000 lux). Compatible with a wide range of lighting appliances, it uses infrared and photosensitive technology to optimize energy efficiency. Designed for easy installation in residential and commercial spaces, it comes with a 2-year warranty ensuring durability and peace of mind.

## Description

Blackt Electrotech BT31C : PIR Motion Sensor Ceiling Mounted White Round Shape (2-Year Warranty) (Regular) : desertcart.in: Home Improvement

Review: Sensor is working fine. - I am reviewing this after almost one month of usage. Even though I mounted the device vertically its object capture angle is very good. Our LED strips connected to this turn on in a flash the moment it senses movement. Nice product. Value for money . Auto switch on and off and motion sensor is perfect. Also there is a mode to select that the auto switch will work only when it's dark. So when it's bright and sunny the auto switch will be in sleep mode .
Review: Good - Good sensor, work perfectly, I have used in my Car Shed, it's working perfectly. Range is good.

## Features

- 🌟 [Customizable Settings]: Easily adjust the detection distance (0–7 meters), sensing angle (360°), and off-delay time (10 seconds to 7 minutes) for flexible and precise motion detection—ideal for environments below 24°C
- 💡 [Versatile Compatibility]: Supports various appliances, LEDs, including incandescent lamps, fluorescent lights, spotlights, and transformers.
- 🔋 [Energy-Efficient Design]: Utilizes infrared technology to activate lights only when motion is detected, with photosensitive control to prevent activation in daylight.
- 🔧 [Adjustable Ambient Sensitivity]: Customize light sensitivity from 3 to 2000 lux for optimal performance in different lighting environments.
- 🛠️ [Easy Installation]: Simple to set up and adjust, ideal for homes, offices, and commercial spaces.
- 🛡️ [ Warranty]: Backed by a comprehensive 2-year warranty, ensuring durability and peace of mind.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0143JR3MG |
| Battery Description | Battery not included |
| Best Sellers Rank | #1,364 in Home Improvement ( See Top 100 in Home Improvement ) #5 in Motion Detectors |
| Brand | Blackt Electrotech |
| Colour | white |
| Compatible Devices | Light, Fan |
| Country of Origin | China |
| Generic Name | Motion sensor |
| Importer | Blackt Electrotech |
| Included Components | manaul |
| Item Weight | 160 g |
| Item model number | BT-31C |
| Manufacturer | Blackt Electrotech |
| Maximum Range | 7 metres |
| Mounting Type | Ceiling Mount |
| Net Quantity | 1 Count |
| Packer | Blackt Electrotech |
| Power Source | AC |
| Product Dimensions | 100D x 30W x 100H Millimeters |
| Recommended Uses For Product | Residential and Commercial Spaces (Homes, Offices, Shops, Hospitals, Corridors, Bathrooms, Parking Areas) |
| UPC | 710918665283 |

## Product Details

- **Brand:** Blackt Electrotech
- **Colour:** white
- **Item Weight:** 160 Grams
- **Maximum Range:** 7 metres
- **Power Source:** AC

## Images

![BT31C : PIR Motion Sensor Ceiling Mounted White Round Shape (2-Year Warranty) (Regular) - Image 1](https://m.media-amazon.com/images/I/51b279hGtkL.jpg)

## Available Options

This product comes in different **Style** options.

## Questions & Answers

**Q: Is it use for khowing or dectcting paranormal motion sensor ??**
A: Are you mad.. who talks about all this in today's world while buying a product .. go see a tantric instead of buying this.. 😂

**Q: Whether installation will be done by the company**
A: No, Normal technical or electrical easy do that

**Q: Will the luminous intensity of led bulb, connected to this sensor, affects the day/night operation? afraid due to the light, the sensor may not work !**
A: Your question is not clear. 

Once it detect any motion it will power on the load (LED or any lights etc) it has a delay timer. Once there is no motion after set delay time it will power off the load. 

You can set the light sensetivity and delay as well.

**Q: Product Dimensions : 14.8 x 13.4 x 7.8 cm. Is it correct ? How can one install so big a unit ?**
A: It is packing size. Unit is circular with Diameter 11.3 CM & Width 2 CM.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Sensor is working fine.
*by M***A on 8 July 2024*

I am reviewing this after almost one month of usage. Even though I mounted the device vertically its object capture angle is very good. Our LED strips connected to this turn on in a flash the moment it senses movement. Nice product. Value for money . Auto switch on and off and motion sensor is perfect. Also there is a mode to select that the auto switch will work only when it's dark. So when it's bright and sunny the auto switch will be in sleep mode .

### ⭐⭐⭐⭐ Good
*by B***H on 24 November 2024*

Good sensor, work perfectly, I have used in my Car Shed, it's working perfectly. Range is good.

### ⭐⭐⭐⭐⭐ Product is not working properly
*by D***. on 3 January 2026*

Product is not working

## Frequently Bought Together

- Blackt Electrotech BT31C : PIR Motion Sensor Ceiling Mounted White Round Shape (2-Year Warranty) (Regular)
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*Product available on Desertcart Ecuador*
*Store origin: EC*
*Last updated: 2026-02-20*