1. Introduction
The LinknLink eSensor-K3 is a versatile 5-in-1 smart multi-sensor designed to enhance your home automation system. It integrates temperature, humidity, PIR motion, and brightness sensing capabilities into a single compact device. Additionally, it features a smart button function for triggering custom automations or emergency alerts.
This manual provides essential information for setting up, operating, and maintaining your eSensor-K3, ensuring optimal performance and integration with your smart home environment.
Image 1.1: The LinknLink eSensor-K3 device shown alongside its companion smartphone application interface.
2. Product Overview
The eSensor-K3 combines multiple sensing functions into one device, offering comprehensive environmental monitoring and control:
- Temperature Sensor: Monitors ambient temperature.
- Humidity Sensor: Measures relative humidity levels.
- PIR Motion Sensor: Detects movement within its field of view.
- Brightness Sensor: Measures ambient light intensity.
- Smart Button: A programmable button for triggering actions or alerts.
Image 2.1: Visual representation of the five integrated functions of the eSensor-K3.
3. Setup
3.1 Package Contents
Ensure all components are present:
- LinknLink eSensor-K3 Multi Sensor
- Wall hanging plate (for mounting)
- Note: 3x AAA batteries are required and not included. An eHome Hub is also required for operation and is typically included with the sensor.
3.2 Battery Installation
- Gently open the battery compartment cover on the back of the eSensor-K3.
- Insert three (3) AAA alkaline batteries, ensuring correct polarity (+/-).
- Close the battery compartment cover securely.
The sensor is designed for long battery life, up to three years under typical usage conditions.
3.3 Mounting the Sensor
The eSensor-K3 can be placed on a flat surface or mounted to a wall using the provided wall hanging plate. Its wireless design allows flexible placement.
- Choose a suitable location for the sensor, considering the desired monitoring area and wireless range (up to 70m line-of-sight).
- For wall mounting, attach the wall hanging plate to the desired surface using appropriate adhesive or screws (not included).
- Slide the eSensor-K3 onto the wall hanging plate until it clicks into place.
Image 3.1: Illustration of the eSensor-K3 dimensions and wall mounting mechanism.
Image 3.2: Example of eSensor-K3 placement for optimal coverage within a home.
3.4 App Pairing and Initial Configuration
To utilize the full functionality of your eSensor-K3, it must be paired with the LinknLink App and connected to an eHome Hub.
- Download the "LinknLink" application from your smartphone's app store (available for iOS and Android).
- Ensure your eHome Hub is powered on and connected to your home network.
- Open the LinknLink App and follow the on-screen instructions to add a new device.
- The app will guide you through the process of discovering and pairing your eSensor-K3 with the eHome Hub.
- Once paired, you can name your sensor and assign it to a specific room within the app.
4. Operating Instructions
4.1 Monitoring with the LinknLink App
The LinknLink App provides real-time data and historical records for all sensor measurements.
- Instant Data: View current temperature, humidity, motion status, and brightness levels.
- Visualized Graph: Access graphical representations of data trends over time.
- History Records: Review past sensor readings.
Image 4.1: Example of a temperature alert notification received on the LinknLink App.
4.2 Setting Up Notifications and Limits
Configure the app to receive alerts for abnormal conditions:
- In the LinknLink App, navigate to the eSensor-K3 settings.
- Set desired upper and lower limits for temperature, humidity, and brightness.
- Enable push notifications to receive alerts on your smartphone when these limits are exceeded or motion is detected.
Image 4.2: The eSensor-K3 monitoring conditions in specialized environments like a refrigerator.
4.3 Voice Control and Smart Home Integration
The eSensor-K3 is compatible with Amazon Alexa and Google Home, allowing for voice-activated queries and routine automations.
- Alexa/Google Home Integration: Link your LinknLink account within the Alexa or Google Home app.
- Voice Commands: Use commands like "Alexa, what's the temperature in the living room?" or "Hey Google, what's the humidity?"
- Routines: Create routines based on sensor readings (e.g., "If motion is detected, turn on the light").
Image 4.3: Voice control functionality with Amazon Alexa and Google Home.
4.4 Using the Smart Button
The integrated smart button can be configured within the LinknLink App to trigger various actions or alerts. This can include activating other smart devices or sending custom notifications.
4.5 Advanced Automations
Leverage the sensor data to create sophisticated home automations:
- Combine motion detection with temperature readings to control heating/cooling.
- Use brightness levels to adjust lighting automatically.
- Set up security alerts based on unexpected motion.
Image 4.4: Examples of advanced automations using eSensor-K3 data with Alexa.
4.6 Data Export and Modbus TCP Support
For advanced users and developers, the eSensor-K3 offers robust data management options:
- Data Export: Download up to 3 years of historical data to Excel for detailed analysis.
- Modbus TCP: Supports Modbus TCP protocol, enabling integration with third-party software and local network data querying without requiring API development.
Image 4.5: Data storage and export features of the eSensor-K3.
Image 4.6: Modbus TCP interface for advanced integration.
5. Maintenance
5.1 Battery Replacement
When the battery level is low, the LinknLink App will typically provide a notification. Replace the three AAA batteries as described in Section 3.2. Always use new alkaline batteries for optimal performance and battery life.
5.2 Cleaning
To clean the sensor, gently wipe the exterior with a soft, dry cloth. Do not use abrasive cleaners or allow moisture to enter the device.
6. Troubleshooting
- Sensor not reporting data:
- Check battery levels and replace if necessary.
- Ensure the eSensor-K3 is within range of the eHome Hub (max 70m line-of-sight).
- Verify the eHome Hub is powered on and connected to the internet.
- Restart the LinknLink App.
- Notifications not received:
- Confirm push notifications are enabled for the LinknLink App in your phone's settings.
- Check that limits and alerts are correctly configured within the LinknLink App.
- Ensure your phone has an active internet connection.
- Voice assistant integration issues:
- Verify that the LinknLink skill/service is enabled and linked in your Alexa or Google Home app.
- Ensure the eSensor-K3 is named clearly and consistently across all platforms.
- Check your internet connection.
- Inaccurate readings:
- Ensure the sensor is not placed near heat sources, direct sunlight, or in areas with extreme drafts, which can affect temperature and humidity readings.
- For motion detection, ensure the sensor's view is unobstructed.
7. Specifications
| Feature | Detail |
|---|---|
| Brand | LinknLink |
| Model | eSensor-K3 |
| Sensor Functions | Temperature, Humidity, PIR Motion, Brightness, Smart Button |
| Power Source | 3x AAA Batteries (not included) |
| Battery Life | Up to 3 years (typical usage) |
| Connectivity | 433MHz Wireless |
| Wireless Range | Max 70m (line-of-sight) |
| Dimensions (L x W x H) | 2 x 2 x 2.5 inches (approx. 50.8 x 50.8 x 63.5 mm) |
| Weight | 8.6 ounces (approx. 243.8 grams) |
| Installation Type | Self-Adhesive / Wall Mount |
| Compatible Hub | LinknLink eHome Hub (required) |
| Smart Home Integration | Amazon Alexa, Google Home |
| Advanced Features | 3-Year Data Storage, Excel Export, Modbus TCP Support |
8. Warranty and Support
8.1 Warranty Information
Warranty details for the LinknLink eSensor-K3 are typically provided with your purchase documentation or can be found on the official LinknLink website. Please refer to these resources for specific terms and conditions.
8.2 Customer Support
For technical assistance, troubleshooting, or further inquiries, please visit the official LinknLink support website or contact their customer service through the LinknLink App. Keep your product model number (eSensor-K3) and purchase information ready when seeking support.
Official LinknLink Store: LinknLink Smart Home Store
