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Atmotube PRO 2 is designed for advanced users and researchers, offering greater data accuracy, location tracking, and direct USB access for data logging and integration with external systems.

<a href="https://support.atmotube.com/en/articles/12629420-atmotube-pro-2-technical-specifications">Atmotube PRO 2 technical specifications</a>

Atmotube PRO 2 adds CO2 and NOx sensors, built-in GPS, USB data access, larger memory, and improved data synchronization compared to Atmotube PRO

What is the difference between Atmotube PRO and PRO 2?

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Feature	PRO	PRO 2
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	256 KB	16 MB

Feature	PRO	PRO 2
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 – 32,765 µg/m³ Supports number concentration readings
TVOC	SGPC3 Digital, auto calibration Sampling rate: In app: 2 sec, CSV: 1 min	SGP41 Supports NOx index Can be disabled in app settings
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

What is the difference between Atmotube PRO and PRO 2?

Technical comparison