Precalibrated SO2 sensor for Bacharach PCA3

Pre-calibrated SO2 sensor for Bacharach PCA3

Once opened or activated, units are Non Returnable / Non Refundable. See our Returns Page Exclusions section for more info.

Return Eligibility: This product may be returned within 30 days only while the factory sensor package remains sealed. Once the package is opened and the sensor is exposed to air, its service life begins and it is no longer eligible for an ordinary return.