What is the difference between Atmotube PRO and PRO2?

Feature

PM sensor (PM1, PM2.5, PM10)

TVOC sensor

Temperature, humidity, pressure

CO2 sensor

NOx sensor

Built-in GPS

USB data access

Sync history data with multiple devices

Turn off/on multiple times without history data loss

Memory size

Feature

Battery

Li-Po 2000 mAh
Working time: up to 10 days (15-minute PM mode)

Li-Po 2300 mAh
Working time: up to 12 days (15-minute PM mode, GPS off)

More information

PM sensor

Range: 0 – 1000 µg/m³

Range increased to 0 - 65500 µg/m³
Supports number concentration readings

TVOC

SGPC3

SGP41

Supports NOx index
Can be disabled in app settingsf

CO2 sensor

—

Built-in CO₂ sensor
Supports manual and automatic calibration

GPS

Phone connection required to store GPS data

Built-in GPS module

Built-in Clock (RTC)

No RTC
Device cannot be powered off more than twice in a row without phone synchronization — otherwise, data between power cycles may be lost.

Integrated RTC clock
Device can be turned off multiple times without history loss.

Data Synchronization with Multiple Devices

—

Supported

USB data transfer

—

Full API access via USB

Memory Size

256 KB
Stores up to 10 days of history data

16 MB
Stores up to 45 days of history (1-minute mode) or 3 days (1-second mode)

History Storage Modes

1-minute average (basic mode)

Adjustable 1-60 seconds intervals
Supports average / min / max / median calculations

Modes: basic, PM extended, GPS extended, PM+GPS extended

Additional Information in History

—

Includes battery percentage, motion flag, error codes, and extended GPS data (satellite SNR for indoor/outdoor detection)

Button Behavior

AQS mode
Turns PM sensor ON

Can be configured: Disabled or AQS / CO₂ / TVOC / NOx / PM
PM sensor ON by default (can be disabled)

External Sensors via USB

—

Supported

Usage without Phone

—

Possible with USB configuration

Bluetooth Bonding

—

Secure bonding supported