Table A2.

Individual calibration coefficients (offset and slope), root mean square error (RMSE), mean bias error (MBE), and mean absolute error (MAE) for the calibrated and raw values of the vapor pressure of the tested air humidity sensors.

Sensor	Calibration Coefficients		RMSE (Calibrated) (hPa)	RMSE (Raw) (hPa)	MBE (Calibrated) (hPa)	MBE (Raw) (hPa)	MAE (Calibrated) (hPa)	MAE (Raw) (hPa)
	Offset	Slope
AM2320	0.595	0.782	0.476	2.247	0.005	2.162	0.405	2.162
DHT22 (#1)	0.075	1.003	0.102	0.146	−0.002	−0.103	0.074	0.125
DHT22 (#2)	0.036	0.968	0.107	0.330	−0.001	0.308	0.075	0.309
HTU21D (#1)	0.388	0.967	0.131	0.144	0.003	−0.039	0.088	0.099
HTU21D (#2)	0.321	0.982	0.132	0.191	0.003	−0.137	0.090	0.161
BME680 (#1)	−0.379	1.044	0.204	0.227	−0.002	−0.079	0.157	0.189
BME680 (#2)	−0.367	1.055	0.200	0.290	−0.001	−0.196	0.153	0.253
BME280 (#1)	0.986	1.017	0.139	1.150	−0.002	−1.141	0.102	1.41
BME280 (#2)	0.860	0.998	0.132	0.855	−0.001	0.845	0.097	0.845