Extech Digital Hygrometer Indoor Lcd 30zu96 Rhm15 Grainger
 
            
 
            
 
            
 
            
 
            
 
            
A hygrometer h a r m t er is an instrument used to measure the amount of humidity and water vapor in the atmosphere in soil or in confined spaces.
 
            
 
            
 
            
 
            
 
            
 
            
