LG EBR31871801 Ir Sensor
( Brand: Lg ), ( Manufacturer Part Number: EBR31871801 ), ( Compatible Brand: For Lg ), ( Type: Ir Sensor ), ( Country Of Origin: China )
Review LG Ir Sensor
The **LG EBR31871801 Infrared Sensor** is a high-performance, versatile motion detection device designed to enhance security, automation, and energy efficiency in both residential and commercial environments. Engineered with cutting-edge infrared technology, this sensor operates on a passive infrared (PIR) principle, making it highly sensitive to heat signatures emitted by moving objects such as humans or pets while remaining energy-efficient and reliable. Its compact yet robust construction ensures seamless integration into a wide range of smart home systems, including LG s own ThinQ ecosystem, as well as third-party platforms like HomeKit, Alexa, and Google Assistant. With a detection range of up to **12 feet (3.6 meters)** and an adjustable sensitivity setting, the sensor can be fine-tuned to minimize false triggers from minor movements, such as swaying plants or drafts, while still reliably capturing the presence of occupants. The device features a **dual-zone detection capability**, allowing for precise monitoring of specific areas within its field of view, which is particularly useful in larger rooms or spaces where targeted automation is desired. Built with durability in mind, the EBR31871801 is constructed from high-quality materials that withstand environmental factors like temperature fluctuations and humidity, ensuring long-term reliability even in less-than-ideal conditions. Whether used to trigger lights, thermostats, or security alerts, this sensor delivers seamless connectivity via **Wi-Fi (2.4 GHz)** and supports both **24V AC or 12V DC power options**, making it adaptable to various wiring setups without requiring complex installations. Its sleek, minimalist design often featuring a white or neutral finish blends effortlessly into modern interiors while maintaining a professional aesthetic. Ideal for smart home enthusiasts, security-conscious users, and automation integrators, the LG EBR31871801 is a sophisticated yet user-friendly solution that bridges the gap between advanced technology and everyday convenience.
### **Pros and Cons of buying a LG EBR31871801 Infrared Sensor**
#### **Pros:**1. **Compatibility with LG Smart Thermostats** This sensor is designed specifically for use with LG s smart thermostat systems, ensuring seamless integration and optimal performance.
2. **Wireless Operation** It connects via radio frequency (RF) rather than hardwiring, making installation easier without complex electrical work.
3. **Temperature and Humidity Monitoring** The sensor provides real-time data on temperature and humidity in different rooms, allowing for more precise climate control.
4. **Remote Control Capability** Users can adjust heating or cooling settings from a smartphone or tablet via the LG Smart Thermostats app, improving convenience.
5. **Energy Efficiency** By monitoring room conditions, the system can optimize heating/cooling cycles, potentially reducing energy consumption.
6. **Durability** LG products are generally built to last, and this sensor is designed for long-term use with minimal maintenance.
7. **Compatibility with Smart Home Ecosystems** Works with other LG smart home devices and can integrate with voice assistants like Google Assistant or Alexa.
#### **Cons:**1. **Limited to LG Systems** The sensor is exclusive to LG s smart thermostats and will not work with other brands, which may limit flexibility if you switch systems later.
2. **Additional Cost** While useful, the sensor adds to the initial setup expense, especially if you don t already have an LG thermostat.
3. **Installation Dependency** Proper placement is crucial for accurate readings, and incorrect positioning (e.g., near heat sources or drafts) can lead to inaccurate data.
4. **Potential Signal Interference** Wireless sensors can sometimes experience signal drops, especially in larger homes or areas with many electronic devices.
5. **No Standalone Functionality** The sensor itself does not control heating/cooling; it relies on the thermostat to act on the data it provides.
6. **Battery Dependency (if applicable)** Some LG sensors may require periodic battery checks or replacements, though this model appears to be hardwired or powered via the thermostat system.
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### **Conclusion**
The **LG EBR31871801 infrared sensor** is a valuable addition for users with LG smart thermostats, offering precise room monitoring and enhanced climate control. Its wireless design simplifies installation, and its integration with LG s ecosystem makes it a practical choice for those already invested in the brand. However, its exclusivity to LG systems and the need for proper placement may be drawbacks for some users.
If you already own an LG smart thermostat and want to improve temperature regulation in multiple rooms, this sensor is a worthwhile investment. For those without an LG system or needing a more universal solution, alternative sensors or thermostats may be more suitable.
### **Recommendation**
**Buy the LG EBR31871801 if:**- You have an LG smart thermostat and want to monitor multiple rooms for better energy efficiency.
- You prefer wireless, easy-to-install sensors that integrate seamlessly with your existing setup.
- You value precise temperature and humidity control for comfort and cost savings.
**Avoid it if:**- You do not own an LG thermostat and are unwilling to switch brands.
- You prioritize compatibility with non-LG systems or third-party smart home platforms.
- You are on a tight budget and can achieve similar results with basic room sensors or manual adjustments.
For most LG thermostat users, the benefits outweigh the limitations, making it a recommended purchase for an upgraded smart home experience.
Details:
Order by the exact alphanumerical sequence found on old part you are replacing. Part Number: EBR31871801 Manufacturer LG Board Type: IR Sensor Known model's: Brand: Versions: LG: 43UL3JEP, 43UP8000PUA, 43UP8000PURAUSGLJH, AUSGLJM, BUSSLJM, 50UL3JEP, 50UP8000PURBUSSLJM, 50UQ7070ZUEBUSSLJM, 55UP7670PUCBUSYLJM, 55UP8000PUA, 55UQ9000PUDBUSCLKR, BUSYLKR, 55UR8000AUABUSFLJM, 65UQ7070ZUEBUSFLKR, 65UR8000AUA. There are possibly several different boards for each model TV. The board has been pulled from working cracked screen TV.
Most cases are new. This can only be done by removing the televisions back cover, don't rely on suggestions.
part #: ebr31871801 prices
- $27.00-$39.99
specifications tvboardgo:
- brand: Lg
- mpn: Ebr31871801
- compatible brand: For Lg
- type: Ir Sensor
- country of origin: China
offer tvboardgo:
- availability: In Stock
- quantity: 1
- started: April 15, 2026
- options: Ship-to-home
- best offers: True
- sold: 0
returns tvboardgo:
- paid by: Buyer
- policy: Returns Accepted
- method: Money back
- time: 30 Days
seller tvboardgo:
- # reviews: 1663
- rating: 99.5%
- city: Plymouth, Michigan
payments tvboardgo:
- other
- credit card: Visa
- wallet: Google-pay
general tvboardgo:
- TV, Video Home Audio > TV, Video Audio Parts > TV Boards, Parts Components
- condition: Used
shipping tvboardgo:
- class: Standard
- cost: $7.95
- transit: 5-10 Days
- type: Calculated
- service: USPS Ground Advantage
- carrier: USPS
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