Dew heaters
Dew heater is placed on the optical tube to prevent optics dewing. A very common problem especially in winter and in sealed optical tubes, such as refractors or Schmidt-Cassegrain. These dew heaters, 12 V powered, heat the telescope preventing the formation of condensation on the optics.
 
            
 
   
   
   
   
                         
                 
  


 
            
                                                                                                                                 
            
                                                                                                                                 
            
                                                                                                                                 
            
                                                                                                                                 
            
                                                                                                                                 
            
                                                                                                                                 
            
                                                                                                                                 
            
                                                                                                                                 
            
                                                                                                                                 
            
                                                                                                                                 
            
                                                                                                                                 
            
                                                                                                                                