LYCEBELL T4-DM165A Wall-Mounted Sound Level Meter

1. Introduction

The LYCEBELL T4-DM165A is a versatile 3-in-1 wall-mounted sound level meter designed for accurate monitoring of decibel levels, temperature, and humidity. Featuring an 11-inch large LCD screen, this device provides real-time data for various environments. It is suitable for use in classrooms, studios, factories, construction sites, apartments, and offices.

Image: The LYCEBELL T4-DM165A device showing its large display with sound level, time, temperature, and humidity readings.

2. Product Features

• 3-in-1 Measurement: Monitors decibel levels (30-130 dB), temperature (-10 ℃ to 50 ℃), and humidity (20% to 85%).
• Extra Large LCD Display: An 11-inch color screen ensures clear readability, even in low-light conditions. Screen brightness is manually adjustable.
• Wall-Mountable Design: Includes screws and hanging holes for easy installation on a wall, or it can be placed freely on a table.
• Long Battery Life: Equipped with a 2000mAh battery, allowing for hours of operation without a direct power source. Can also be powered continuously via a 10-foot USB cable.
• Wide Application: Ideal for monitoring noise levels in diverse settings such as classrooms, studios, main traffic routes, factories, construction sites, homes, and offices.

3. Package Contents

Please check the package to ensure all items are present:

• 1 x LYCEBELL T4-DM165A Sound Level Meter
• 1 x Quick Start Guide / User Manual
• 1 x USB Charging Cable (approx. 10 feet long)
• 1 x Positioning Sticker
• 2 x Rubber Stoppers (wall plugs)
• 2 x Screws

Image: Contents of the product package, showing the decibel meter, quick start guide, USB cable, positioning sticker, rubber stoppers, and screws.

4. Setup

4.1 Powering the Device

The device can be powered in two ways:

1. USB Power: Connect the provided USB cable to the charging input port (11) on the device and plug the other end into a standard USB power adapter (not included) or a powered USB port. This allows for continuous operation.
2. Internal Battery: The device has a built-in 2000mAh rechargeable Lithium-ion battery. Ensure the battery is charged before initial use. The battery icon on the display indicates the charge status.

4.2 Wall Mounting

To mount the device on a wall:

1. Choose a suitable location on a wall, away from direct heat sources or excessive vibrations.
2. Use the provided positioning sticker to mark the drill holes on the wall.
3. Drill two holes at the marked positions.
4. Insert the rubber stoppers (wall plugs) into the drilled holes.
5. Insert the screws into the rubber stoppers, leaving a small portion of the screw head exposed to hang the device.
6. Align the hanging holes on the back of the sound level meter with the exposed screw heads and securely hang the device.

Image: The sound level meter displayed on a wall in a home environment, illustrating its wall-mounted setup.

5. Operating Instructions

5.1 Device Overview and Controls

Image: A detailed diagram labeling the various parts and buttons of the sound level meter.

1. Power Button: Press to turn the device ON/OFF.
2. Enhance Brightness: Increases the brightness of the LCD screen.
3. Reduce Brightness: Decreases the brightness of the LCD screen.
4. Detection Speed: Adjusts the response speed of the decibel measurement.
5. Decibel Display: Shows the current sound level in dBA.
6. Time Display: Shows the current time.
7. Sound Level Indicators: Visual bar graph indicating sound levels (green, yellow, red).
8. Temperature Level Indicator: Icon indicating temperature measurement.
9. Temperature Display: Shows the current temperature.
10. Humidity Display: Shows the current relative humidity.
11. Charging Input: USB port for power and charging.
12. 11" Large LCD Display: The main screen showing all measurements.

5.2 Basic Operation

1. Power On: Press the Power Button (1) to turn on the device. The display will light up and show current readings.
2. Adjust Brightness: Use the 'Enhance Brightness' (2) and 'Reduce Brightness' (3) buttons to set the desired screen illumination.
3. Monitor Readings: The device continuously displays decibel levels (5), time (6), temperature (9), and humidity (10).
4. Interpreting Sound Levels: The Sound Level Indicators (7) provide a quick visual reference:
   • Green: Decibel < 55dB (Good)
   • Yellow: Decibel 55-95dB (Warning)
   • Red: Decibel > 95dB (Dangerous)
5. Power Off: Press and hold the Power Button (1) to turn off the device.

Image: Visual guide to interpreting decibel levels: green for good, yellow for warning, and red for dangerous noise levels.

6. Specifications

7. Maintenance

• Cleaning: Use a soft, dry cloth to clean the device. Do not use abrasive cleaners or solvents.
• Storage: When not in use for extended periods, store the device in a cool, dry place, away from direct sunlight and extreme temperatures.
• Battery Care: Recharge the internal battery regularly to maintain its lifespan, even if the device is primarily powered via USB. Avoid fully discharging the battery for long periods.
• Avoid Impact: Protect the device from drops and impacts, which can damage the internal components and the display.

8. Troubleshooting

• Device does not turn on:
  • Ensure the USB cable is securely connected and receiving power.
  • Check if the internal battery is charged. Connect to a power source and allow it to charge for some time.
• Display is dim or unreadable:
  • Adjust the screen brightness using the 'Enhance Brightness' (2) and 'Reduce Brightness' (3) buttons.
  • Ensure the device is not in direct sunlight, which can make the LCD difficult to read.
• Inaccurate readings (Decibel, Temperature, Humidity):
  • Ensure the device is placed in an open area, away from obstructions that might affect sensor readings.
  • Avoid placing the device near heat sources, vents, or areas with high airflow, which can skew temperature and humidity readings.
  • For decibel readings, ensure there are no direct sound sources very close to the microphone that could cause clipping or inaccurate measurements.
• Battery icon always shows full:
  • This may indicate a calibration issue or a minor software anomaly. If the device functions otherwise, it might not affect core functionality. If battery life is significantly shorter than expected, contact support.

9. Safety Information

• Do not expose the device to water or excessive moisture.
• Do not attempt to open or repair the device yourself. Refer to qualified service personnel.
• Keep the device out of reach of children.
• Use only the provided USB cable for charging.
• Dispose of the device and its battery according to local regulations.

10. Warranty and Support

LYCEBELL offers a 12-month satisfaction guarantee for this product. For any questions, technical support, or warranty claims, please refer to the contact information provided with your purchase or visit the official LYCEBELL website.

Please retain your proof of purchase for warranty purposes.