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This article introduces photoacoustic CO2 sensors: it covers indoor CO2's health impacts, photoacoustic tech principles (light absorption → temp/pressure change → sound), advantages over NDIR (small, low-cost, high-accuracy), DFRobot's sensor (400-5000ppm, I2C) and a portable indicator.
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Fast Delivery
Orders are typically delivered to Hong Kong within 3-4 days depending on location.
Free Shipping
Free delivery to Hong Kong on orders of HK$330 or more. A delivery charge of HK$125 will be billed on all orders less than HK$330.
Incoterms
UPS, FedEx or DHL freight pre-paid: CPT (Duty, customs, and taxes due at time of delivery)
Payment Types
Credit account for qualified institutions and businesses
Payment in Advance by Wire Transfer
Marketplace Product
More Products From Fully Authorized Partners
Average Time to Ship 1-3 Days, extra ship charges may apply. Please see product page, cart, and checkout for actual ship speed.
Incoterms: CPT (Duty, customs, and applicable VAT/Tax due at time of delivery)
For more information visit Help & Support
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