| Cat 
        No. | Description | 
      
        | 291 | Industrial Kelvin Double Bridge (For 
        Industries only) (Range - 0.2 micro ohm to 11 ohms, Acc. 0.05%)
 | 
      
        |  | 
      
        | 292 | Spot Reflecting Galvanometer | 
      
        |  | 
      
        | 293 | Heavy Duty DC Source 10 Amps | 
      
        |  | 
      
        | 294 | Conductivity Attachment | 
      
        |  | 
      
        | 295 | Senior Kelvin Double Bridge (Range 0.02 micro ohm to 1.1 ohm)
 | 
      
        |  | 
      
        | 296 | Accessories 
        Spot Reflecting Galvanometer | 
      
        |  | 
      
        | 297 | Heavy Duty DC Source 30 Amps. | 
      
        |  | 
      
        | 298 | Conductivity Attachment | 
      
        |  | 
      
        | 299 | Current Reversing Switch. | 
      
        |  | 
      
        | 300 | Precision Kelvin Cum Wheatstone Bridge (Range - 0.1 micro ohms to 1 meg ohm)
 | 
      
        |  |