Logging rate on SD card (PUrple Air Zen)

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Hi everyone,

I’m currently using the PurpleAir Zen – Air Quality Monitor and I’m wondering if it’s possible to increase the logging rate on the SD card to every second (1 Hz).

I’m a researcher and need higher-resolution data for analysis purposes. I could only find discussions and solutions for the PurpleAir Classic SD models (PA-II-SD), such as modifying the config.txt file or adjusting wiring, but I haven’t found any information or instructions for the Zen model specifically.

Has anyone successfully configured the Zen model to log data at a 1-second interval?
If so, could you kindly share the steps or whether it’s even supported?

Appreciate any help or guidance—thanks in advance!

Best regards

Amin
Kanazawa University, Japan

2 Likes
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Hi @muhammad_amin

If this is something you’re still interested in, please send an email in to contact@purpleair.com.

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Dear @Kieran

Thank you very much for your follow-up
Yes, I am still interested and still waiting the follow up from contact@purpleair.com
I have sent my concern on April 20th, 2025, but I did not get any reply yet

Please kindly help me on this