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EcoQube Flex User Guide – Ecosense

EcoQube Flex User Guide

Introduction

EcoQube Flex™ is a portable, battery-powered continuous radon monitor that delivers fast, accurate results with 15X greater sensitivity than industry standard requirements. Save and compare results room-by-room, view daily radon fluctuations on the always-on display, and access clear charts, long-term trends, and actionable advice for your home safety with the Ecosense App.

In the Box

ecoqube flex device EcoQube Flex Device AA Battery (included) Quick Start Guide card

Placement & Guidelines

Best placement:

  • In a lived-in area
  • Away from windows or vents, at least 3 feet away from doors/windows
  • At least 20 in (50 cm) or more above the floor, 1–3 feet above the floor is ideal
  • On a stable, flat surface
  • Do not block air vents on the device

Avoid placing near:

  • Open windows or doors
  • Heating and cooling vents
  • Kitchens and bathrooms
  • Direct sunlight

Tip: For the most accurate trend, keep EcoQube Flex in one spot for 2–7 days before moving it to the next room.

EcoQube Flex Setup

  1. Insert the included AA batteries.
  2. EcoQube Flex turns on automatically.
  3. Wait for the status displayed on the screen to change from “Booting” to “Measuring”.
  4. You’ll see your first reading within 10–15 minutes.
  5. Download and open the Ecosense - Radon Monitoring app.

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⚠️ Note: EcoQube Flex uses a different app than EcoQube. Please download the Ecosense App, not the EcoQube app.

  1. Register and create your account.
  2. Follow the instructions in the app.

Device Overview

 

Always-on Display Information

Status

Meaning
Booting Device is starting up
Measuring Device is actively detecting radon
Alarm (ON) Audio alarm is enabled; it will beep if the level exceeds your set threshold
Alarm (OFF) Alarm is disabled
Battery Battery level indicator
Bluetooth Shows Bluetooth ON/OFF; icon appears when connected to the app
Radon Level Guide (Color Bars) The color bar provides an at-a-glance safety guide based on your selected region:
  • Green → Good
  • Orange → Moderate
  • Red → High Risk
Highest/Lowest Shows the radon level fluctuation snapshot during the selected time range:
  • Highest: Highest radon level measured
  • Lowest: Lowest radon level measured
Real-time
  • Starts automatically when powered on.
  • Shows an hourly average, updated every 10 minutes.
  • Displays the highest and lowest readings from the past hour.
  • Data resets if the device loses power.
24hr Avg
  • Displays the average reading over the past 24 hours.
  • Available after 24 hours of operation. 
  • Updates every hour.
  • Shows the highest and lowest readings from the past day.
  • Data resets if the device loses power.
72hr Avg
  • Displays the average reading over the past 3 days.
  • Available after 72 hours.
  • Updates hourly.
  • Shows the highest and lowest readings from the last 3 days.
  • Data resets if the device loses power.
Week Avg
  • Displays the average reading over the past 7 days
  • Available after 7 days.
  • Updates hourly.
  • Displays the highest and lowest hourly readings.
  • Data resets if the device loses power.
Month Avg
  • Displays the average reading over the past 30 days.
  • Available after 30 days.
  • Updates hourly.
  • Displays the highest and lowest readings from the last 30 days.
  • Data resets if the device loses power.
Long-term Avg
  • Displays the average reading of all data since monitoring began.
  • Available after 24 hours.
  • Updates hourly.
  • Displays the highest and lowest readings.
  • The data will remain unless the device is factory reset.
Days Measured
  • Shows how many days the device has been monitoring.
  • Displays the highest and lowest values of long-term data.

Operation Guide

Select Mode

  • Press the MODE button to cycle through each radon level measurement view:
    • Real-time (hourly average)
    • 24-hour average
    • 72-hour average
    • Weekly average
    • Monthly average
    • Long-term average
    • Measured Days (total number of days monitored)

Change Settings

  • Measurement Unit
    • Press the SET button to switch between units.
      • pCi/L (U.S.) ↔ Bq/m³ (Canada, UK, Europe)
      • The selected measurement unit icon will briefly appear on the display for a few seconds and then disappear.
  • Alarm ON / OFF
    • Press the ALARM button to turn the alarm ON or OFF.
  • Set the Alarm Threshold
    • By default, the alert threshold is 4.0 pCi/L in the U.S., and 200 Bq/m³ for Canada, the U.K., and the EU.
    • Press and hold the ALARM button for 3 seconds to enter alarm setup mode.
    • Press the MODE button to move between digits.
    • Press the SET button to change the selected digit.
    • Press and hold the ALARM button again for 3 seconds to save and exit.
    • Alarm range:
      • pCi/L: 1.0 – 27
      • Bq/m³: 37 – 999
  • Radon Levels Guide (By Region)
    • Radon safety levels are set by local health organizations, and recommended action thresholds vary by region. Because of this, EcoQube Flex adjusts its guidance based on the country you select on the device.
      • United States: Follows the U.S. Environmental Protection Agency (EPA) action level, with the threshold set to 4.0 pCi/L
      • Canada: Follows Health Canada guidelines, with the threshold set to 200 Bq/m³
      • Europe: Follows European Union (EU) reference levels, with the threshold set to 300 Bq/m³
    • Keep in mind: The World Health Organization (WHO) recommends taking action above 100 Bq/m³ (2.7 pCi/L), which is why EcoQube Flex classifies this range as “Moderate” to help identify elevated radon levels earlier, even below regional action thresholds.
  • Bluetooth ON / OFF (Device Control)
    • To disable Bluetooth on EcoQube Flex:
      • Press and hold the ALARM button for 10 seconds.
        Bluetooth will be turned off on the device.
      • Press and hold the ALARM button for 10 seconds to toggle Bluetooth.
      • Use this when you want to save battery or do not need app syncing. If bluetooth is turned off on the device, it will not turn on automatically when connecting through the app, so you need to turn it on manually.
    • Turn Bluetooth ON
      • Press and hold the ALARM button for 10 seconds again.

Reset Options

Reset Existing Data

  • Erases stored radon data on the device.
  • Data is removed when you start New Monitoring (see below).

Factory Reset

  • Use this option before transferring the device to another user or starting completely fresh.
  • Erases all data and restores default settings
  • How to Factory Reset:
    • Press and hold the MODE button for 10 seconds.
    • A countdown appears on the display (9 → 1).
    • Release the button when the countdown completes to finish the reset.
    • ⚠️ Warning: Factory reset permanently deletes all saved data and cannot be undone.

EcoQube Flex App

1. Download App & Overview

After signing in, the app allows you to:
  • View real-time radon levels.
  • Check trends over 24 hours, 72 hours, 7 days, 30 days, or 1 year.
  • Monitor multiple rooms (or locations) with a single or multiple devices simultaneously.
  • Store historical data for reference.
Tip: If you are already registered on the EcoQube app, you can sign in to the Ecosense app (EcoQube Flex app) with the same email and password without registering again.
Warning: If the email is deleted from either account, it will be removed from both accounts.

2. Create a New Place

Use “Places” to organize different homes or buildings.

Steps:

  1. Open the app
  2. Tap “Create a New Place”
  3. Enter a location name (e.g., Home, Work)
  4. Tap “Save”

✅ Tip: Create one place per location to keep the data organized.

3. Start New Monitoring (Add Device)

Steps:

  1. In the app, tap “Start New Monitoring”
  2. Select device
  3. Follow on-screen pairing instructions
  4. Assign the device to a Place

✅ Bluetooth must be ON to connect the device.

💡 Tip: Keep your phone close to the device during pairing.

4. View Your Data

What you can check:

  • Live readings
  • Trend charts
  • Highest and lowest levels
  • Daily and long-term averages

How to Read the Chart

  • Charts appear after 1 hour of monitoring.
  • Period (Shows timeframe from the last synced date.)
    • Select a timeframe: 1d, 3d, 7d, 30d, 1y
    • Shows data collected within the selected period.
  • Overview Slide Bar(Blue Area)
    • Drag left or right to explore past readings in detail.
    • Timestemps show you how radon levels change over time.
  • Range
    • Displays the lowest and highest radon values for the selected period.
  • Overall
    • Shows the average radon level for the selected period.

5. Device Settings

Editable in App: Device name, Room type, Location floor.

Non-Editable in App (Device-Controlled): 

  • These settings must be adjusted directly on the EcoQube Flex using its physical buttons:
    • Measurement unit (pCi/L or Bq/m³)
    • Radon level guides (Region setting)
    • Audio alarm (ON / OFF)
    • Audio alarm threshold

Delete Device:

Removing a device from your account:

  • Hides it from the app view
  • Continues local monitoring on the device
  • Allows re-registration anytime
  • Preserves all stored data (unless factory reset)
  • ⚠️ Note: Deleting does not stop monitoring or erase device data.

6. Monitor one room at a time with a single EcoQube Flex

Move EcoQube Flex room-to-room and start a new session in the app to keep each location’s data separate.

Steps to Start New Session:

  1. Tap the “+” button In the upper right-hand corner of the app.
  2. Select Start New Monitoring.
  3. Enter a new device name and update location settings if needed.
  4. Confirm to start monitoring in the new room.

What Happens to Previous Data

  • Existing measurements are saved as history.
  • A new session begins for the new room.
  • Each location maintains its own historical record in the app.

7. Monitor multiple rooms simultaneously with multiple EcoQube Flex devices

Use one EcoQube Flex per room to monitor multiple locations simultaneously.

Steps to Add a Device:

  1. Tap the “+” button in the upper right-hand corner.
  2. Select Start New Monitoring.
  3. Choose the EcoQube Flex to add.
  4. Enter a device name and update location settings if needed.
  5. Confirm to begin monitoring in the new room.

💡 Helpful Tips

  • Each device keeps its own history for its assigned room.
  • Every unit has a unique serial number (shown on the bottom of the device and in the app)
  • Name devices uniquely (e.g., Basement, Bedroom).
  • View all rooms from your Place overview.

Technical Specifications

Detection Technology Pulsed Ionization Chamber
Sensitivity 30 counts per hour (cph) per 1 pCi/L (37 Bq/m³)
First Reliable Result Within an hour
Accuracy/Precision ±10% at 10 pCi/L (370 Bq/m³) after 10 hours (95% confidence)
Data Update Interval Every 10 minutes (with 60-minute rolling average)
Measurement range 0.2 ~ 99.9 pCi/L
Monitoring Modes (Test Duration) Real-time, 24h, 72h, weekly, monthly, long-term (1 year)
Trend Data Highest/lowest readings per mode
Display Type Always-on Display
Display Contents - Radon level & guideline indicators
- Measurement unit (pCi/L or Bq/m³)
- Highest/lowest readings
- Bluetooth status
- Battery status
- Audio alarm status and threshold
- Total measured days
Power Supply 2 × AA Batteries (up to 7 years in offline mode)
Connectivity Bluetooth Low Energy (BLE)
Data Storage 1 year on-device + unlimited cloud backup
Operating Temperature and Humidity 32°F~104°F (0~40°C), Relative Humidity <80%
Dimensions 3.14”(W) x 3.14”(D) x 2.95”(H)
Weight 0.518 lb (235g) - (including 2AA batteries)

Regulatory Guide

Limited Warranty

Ecosense products are warranted to substantially conform to their product specifications and against original defects in design, materials, and workmanship for a period of twelve (12) months, calculated from the later of the date of purchase or delivery if ordered on the Internet, when used for normal domestic purposes in accordance with the Ecosense User Guide. Ecosense shall not be liable for damages related to failure or loss of data arising from incorrect operation and handling of the products. Please see www.ecosense.io/support for specific warranty and liability information relating to this Product.

Safety and Maintenance

The Ecosense EcoQube Flex (‘Product’ or ‘product’) is intended for indoor use only. Avoid direct exposure to sunlight for long periods of time. Avoid exposure to direct heat sources. For correct usage, make sure the Product is operating in the specified temperature range (see technical specifications in the User Guide or visit www.ecosense.io). Exposure to high humidity may permanently alter the product's sensitivity or damage the product. Do not disassemble. If the Product does not work as specified, please contact your local dealer or visit us at www.ecosense.io. Use a dry cloth to clean the Product. Disposal: electronic equipment.

Regulatory Compliance USA

Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the Product. This Product complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This Product may not cause harmful interference, and (2) this Product must accept any interference received, including interference that may cause undesired operation. This Product has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This Product generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this Product does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

—Reorient or relocate the receiving antenna.
—Increase the separation between the Product and the receiver.
—Connect the Product into an outlet on a circuit different from that to which the receiver is connected.
—Consult the dealer or an experienced radio/TV technician for help.

RF Exposure Safety

This product is a radio transmitter and receiver.
It is designed not to exceed the emission limits for exposure to radio frequency (RF) energy set by the Federal Communications Commission.
The antenna must be installed and operated with minimum distance of 8 inches (20 cm) between the radiator and your body.
This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.

EU Declaration of Conformity

FTLab co., LTD located at #503, 8, 330 beon-gil, Haebong-ro, Ansan-si, Gyeonggi-do, Korea, hereby declares that this Product complies with the provisions of the related EU directives and their amendments.

The full text of the EU declaration of conformity is available at: https://link.ecosense.io/certificates

Ecosense WEEE Reg. Nos.: DE13932546, FR281905_05LXSZ

Power Supply

Power supply: 3 V DC ⎓
Operating current: 80 µA
Battery type: 2 × AA (1.5 V) Alkaline Batteries

Battery Safety

- Use alkaline or lithium AA batteries
- Do not mix battery types or old/new batteries
- Install according to polarity markings
- Do not short-circuit, crush, or expose batteries to fire
- Dispose according to local regulations

Model Description

EcoQube Flex (Model: EF100)

Frequently Asked Questions

EcoQube Flex FAQs