The table above reflects the percentage response provided by the sensor (top row) when exposed to a known concentration of the target gas (column 1).The numbers were measured under these environmental conditions: 20 °C (68 °F), 50% RH and 1 atm.The specified cross-interference numbers apply to new sensors only, and may vary with time as well as from sensor to sensor.“—” means no data available.This table is given as a reference only and is subject to change.