---
product_id: 84430685
title: "(BT-31H): PIR Wall Mounted Hidden Infrared Motion Sensor Switch with (ON/Off/PIR Button)"
brand: "blackt electrotech"
price: "$15.09"
currency: USD
in_stock: true
category: "Blackt Electrotech"
url: https://www.desertcart.us/products/84430685-bt-31h-pir-wall-mounted-hidden-infrared-motion-sensor-switch
store_origin: US
region: United States of America
---

# 600W max load for incandescent lamps Adjustable ambient light sensor (3-2000 LUX) 160° wide detection angle (BT-31H): PIR Wall Mounted Hidden Infrared Motion Sensor Switch with (ON/Off/PIR Button)

**Brand:** blackt electrotech
**Price:** $15.09
**Availability:** ✅ In Stock

## Summary

> 🚀 Light up smarter, not harder — join the motion-sensing revolution!

## Quick Answers

- **What is this?** (BT-31H): PIR Wall Mounted Hidden Infrared Motion Sensor Switch with (ON/Off/PIR Button) by blackt electrotech
- **How much does it cost?** $15.09 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/84430685-bt-31h-pir-wall-mounted-hidden-infrared-motion-sensor-switch)

## 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:** Supports up to 600W incandescent and 200W energy-saving lamps, cutting down your power bills effortlessly.
- • **Safe & Intuitive Control:** Integrated circuit with ON/Off/PIR button offers reliable, hands-free lighting control for modern living.
- • **Panoramic Motion Detection:** Covers a broad 160° field with up to 9 meters range, ensuring no movement goes unnoticed.
- • **Effortless Wall Integration:** Sleek 2-module plate design for quick, hidden installation that blends seamlessly with your space.
- • **Customizable Light Sensitivity:** Fine-tune the ambient light sensor from twilight to daylight (3-2000 LUX) for perfect automation.

## Overview

The Blackt Electrotech BT-31H is a wall-mounted, hidden PIR infrared motion sensor switch designed for seamless installation and efficient home lighting control. Featuring a wide 160° detection angle with a 9-meter range, it supports up to 600W incandescent and 200W energy-saving lamps. Its adjustable ambient light sensor (3-2000 LUX) allows personalized sensitivity settings, while the integrated ON/Off/PIR button ensures safe and convenient operation, making it a top choice for energy-conscious, tech-savvy professionals.

## Description

Blackt Electrotech(BT-31H): PIR Wall Mounted Hidden Infrared Motion Sensor Switch with (ON/Off/PIR Button) : desertcart.in: Home Improvement

## Features

- Easy Installation: Hidden Modular Infrared Motion Sensor can be easily installed on your wall with minimal effort with stranded size of 2 module plate .
- Wide detection range/Dispatch: of 160° with 9 Meter max (<24°C) for effective motion detection in a wide area
- Energy Efficient: With a rated load of 600W (incandescent lamp) and 200W (energy-saving lamp), this motion sensor switch is an energy-efficient option for your home.
- Adjustable Ambient Light: The ambient light sensor is adjustable, ranging from 3-2000LUX, which allows you to customize the sensitivity of the motion sensor.
- Safe and Convenient: With automatic detection and an integrated circuit, the Blackt Electrotech BT31H PIR Wall Mounted Hidden Modular Infrared Motion Sensor switch provides a safe and convenient way to control your home lighting.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07HK8L5XT |
| Antenna Location | Residential Energy Management, Residential Security |
| Best Sellers Rank | #41,526 in Home Improvement ( See Top 100 in Home Improvement ) #4 in Motion-Activated Wall Switches |
| Brand | Blackt Electrotech |
| Built-In Media | false |
| Colour | White |
| Compatible Devices | Light |
| Country of Origin | India |
| Customer Reviews | 3.9 3.9 out of 5 stars (177) |
| Item Dimensions D x W x H | 5D x 7.5W x 7.5H Centimeters |
| Item Weight | 99 Grams |
| Manufacturer | Blackt Electrotech |
| Maximum Range | 9 metres |
| Mfr Part Number | BT-3123 |
| Model Number | BT-3123 |
| Mounting Type | Wall Mount |
| Number of Items | 1 |
| Power Source | 220v,Power |
| UPC | 710918665092 |
| Upper Temperature Rating | 40 Degrees Celsius |

## Product Details

- **Brand:** Blackt Electrotech
- **Colour:** White
- **Item Weight:** 99 Grams
- **Maximum Range:** 9 metres
- **Power Source:** 220v,Power

## Images

![(BT-31H): PIR Wall Mounted Hidden Infrared Motion Sensor Switch with (ON/Off/PIR Button) - Image 1](https://m.media-amazon.com/images/I/51tPAIwhCnL.jpg)

## Questions & Answers

**Q: Does it have dusk to dawn so that the motion sensor works only at night?**
A: Yes, sir you can Set as per your requirement Ambient Light: 3-2000LUX (Adjustable)

**Q: Is this like a auto sensor light?**
A: It motion sensor, it will turn ON after detecting a motion

**Q: 2 module or 4 module size**
A: 50X50 CM size

**Q: can this replace standard single switch electric box?**
A: Not Applicable

## Frequently Bought Together

- Blackt Electrotech(BT-31H): PIR Wall Mounted Hidden Infrared Motion Sensor Switch with (ON/Off/PIR Button)
- Blackt Electrotech : BT31W PIR Sensor Motion Sensor Energy Saving Motion Detector Wall Mounted (1)

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-09-24*