Airthings Corentium Home Radon Detector 223 User Manual

1. Introduction

The Airthings Corentium Home Radon Detector 223 is a state-of-the-art, battery-operated device designed for accurate and continuous monitoring of radon gas levels in your home or other indoor environments. This portable and lightweight detector provides on-screen daily, weekly, and long-term average radon concentrations, empowering you to take informed action for your indoor air quality.

Radon is an invisible, odorless, and radioactive gas that naturally occurs and is found everywhere, impacting air quality. It is the leading cause of lung cancer for non-smokers. Continuous monitoring is essential as radon levels can fluctuate daily due to various environmental factors.

2. Product Overview

Figure 1: Front view of the Airthings Corentium Home Radon Detector 223, displaying long-term and short-term average radon levels.

Figure 2: Rear view of the Airthings Corentium Home Radon Detector 223, highlighting the battery compartment, reset button, and mode button.

Key Features:

• Battery-Operated: The first digital radon detector designed for portability without the need for an outlet.
• Continuous Monitoring: Provides ongoing measurement of radon levels.
• Digital Readings: Clear LCD screen displays long-term, weekly, and daily average concentrations.
• Radon Report Generation: Ability to generate self-inspection reports.
• Easy to Use: Simple setup and operation.

3. Setup

3.1. Unboxing and Initial Inspection

Carefully remove the Airthings Corentium Home Radon Detector from its packaging. Inspect the device for any visible damage. Ensure all components, including the radon sensor and 3 AAA batteries, are present.

3.2. Battery Installation

1. Locate the battery compartment on the back of the device (refer to Figure 2).
2. Slide open the battery cover.
3. Insert the 3 AAA batteries, ensuring correct polarity (+/-).
4. Close the battery cover securely.
5. The device will automatically power on and begin calibration.

3.3. Placement

Place the detector in the lowest lived-in area of your home, such as a basement or ground floor. Ensure it is at least 20 inches (50 cm) from the floor and 4 inches (10 cm) from other objects. Avoid placing it near windows, doors, or ventilation systems that could affect readings.

Figure 3: Proper placement of the radon detector on a shelf in a living area.

4. Operating Instructions

4.1. Understanding the Display

The LCD screen displays two main readings:

• Long Term Average: This is the average radon concentration since the device was last reset or powered on. This reading becomes more accurate over time.
• Short Term Average: This displays the average radon concentration over the last 24 hours (default) or 7 days. Use the 'Mode' button to switch between these short-term views.

A flashing dot in the upper right corner indicates that the device is actively taking measurements.

Figure 4: Close-up of the detector's display, showing long-term and short-term average readings.

4.2. Interpreting Radon Levels

The device provides guidance on interpreting your long-term average readings:

• 0-2 pCi/L: Continue to monitor.
• 2-4 pCi/L: Ventilate and monitor.
• 4+ pCi/L: Contact a professional and keep monitoring.

It is recommended to monitor for at least 24 hours for initial results, and for 7 days for a more stable long-term average. Radon levels naturally fluctuate with ventilation and weather, so longer measurements provide a more representative average.

Figure 5: Airthings Radon Levels Chart, detailing recommended actions based on pCi/L readings.

4.3. Generating a Radon Report

The Corentium Home allows you to generate a radon self-inspection report. Connect the device to your computer via the micro USB port (located on the side, not included). Follow the instructions provided on the Airthings website to download your data and create a printable report.

5. Maintenance

5.1. Battery Replacement

The device is powered by 3 AAA batteries (included). The battery life is estimated at over 2 years. When the battery indicator on the display shows low power, replace all three batteries with new ones. Refer to section 3.2 for battery installation steps.

5.2. Cleaning

Wipe the device with a soft, dry cloth. Do not use abrasive cleaners or solvents, as these may damage the device.

5.3. Calibration

The Airthings Corentium Home Radon Detector does not require annual calibrations throughout its useful life, estimated at over 10 years. This is due to its advanced internal architecture and signal analysis algorithms.

6. Troubleshooting

6.1. No Display / Device Not Turning On

• Check if the batteries are inserted correctly with the right polarity.
• Replace the batteries with new ones.

6.2. Inconsistent Readings

• Ensure the device has been running for at least 24 hours for initial readings and 7 days for a stable short-term average. Long-term averages become more accurate over longer periods.
• Verify the device is placed in an optimal location, away from direct drafts, windows, or extreme temperature fluctuations.
• Radon levels naturally fluctuate. Continuous monitoring provides a more representative average.

6.3. Resetting the Device

To clear all historical data and restart monitoring, use a pointed object (like a toothpick) to press the 'Reset' button located on the back of the device (refer to Figure 2). This will reset all averages to zero and begin a new measurement cycle.

7. Specifications

8. Warranty and Support

8.1. Warranty Information

Airthings offers a 5-year extended warranty on all air quality monitors for consumers. Registration is required within 30 days of purchase on the official Airthings website. Registration is free and does not affect your statutory rights.

8.2. Customer Support

For further assistance, technical support, or to register your product for warranty, please visit the official Airthings website or contact their customer service department.