Something is wrong with these measurement units

Hi, I am glad I found this company, would like to use their devices. I found a pressure sensor SM9541-100c which is listed below as -5 to 100cmH20 OR +/- 12 PSI. Since 12 PSI is 843 cmH2O I got pretty interested.

Is this an either/or setting on the board (hopeful) or a mistake?

Thank you,

SM9541-100C-S-C-3-S Calibrated Pressure Sensor -5 to 100 cmH₂O ±12 PSI Temperature Compensated I2C Mini Module