Protimeter HygroMaster 2 Hygrometer - With Hygrostick - BLD7750
Hygrostick Data (Nominal). - Hygromaster 2. - Short Hygrostick. - Simple to use interface with colour display. - IR Based - With 12:1 (D:S) Ratio. Data Storage. - Nominal response 30% to 90% and back to 30% RH in 45 seconds @ 68°F (20°C).