Fluke Calibration 1620A-S 256 Precision Thermo-Hygrometer

The standard-accuracy sensor (S model) reads temperature to 0.25C over its calibrated range of 15C to 35C. Relative humidity readings are to 2% RH from 20% RH to 70% RH.
Operating range 0 C to 50 C (32 F to 122 F); 0 % RH to 100 % RH
Calibrated temperature
Accuracy (H Model)
0.125 C from 16 C to 24 C ( 0.225 F from 60.8 F to 75.2 F)

Calibrated temperature
Accuracy (S Model)
0.25 C from 15 C to 35 C ( 0.45 F from 59 F to 95 F)

Calibrated RH accuracy
(H Model)
1.5 % RH from 20 % RH to 70 % RH

Calibrated RH accuracy
(S Model)
2 % RH from 20 % RH to 70 % RH