Product 

Features 

1620A  The “DewK”
Thermo-Hygrometer 

Two channels measure ambient temperature to ±0.125 °C and  %RH to ±1.5 %. Onboard memory holds up to two years of time/date-stamped readings. Visual and audio alarms. Detachable sensors contain their own calibration data for easy recalibrations.  NEW! Ethernet and wireless capabilities.

5121
Bench-Top Temperature /Humidity Generator 

Full range accuracy ±0.5 %RH. 
Large working volume for optimal throughput. 
NIST-developed two-pressure principal.