Specifications 
 
 
    
        
            | Display Range | 
            0.10 to 25,000 rpm with floating decimal | 
         
        
            | Accuracy | 
            0.10 to 999.99 rpm: ±0.06 rpm 
            1,000.0 to 9,999.9 rpm: ±0.6 rpm 
            10,000 to 25,000 rpm: ±0.006% rpm | 
         
        
            | Display | 
            DT-105A: (LCD MODEL) 5 digit 0.47" (12mm) high 
            DT-107A: (LED MODEL) 5 digit 0.4" (10mm) high | 
         
        
            | Measurement Units | 
            Per Second: Inches, Centimeters (optional, inquire) 
            Per Minute: Revolutions, Inches, Feet, Yards, Meters 
            Per Hour: Miles, Kilometers (optional, inquire) 
            Total: Revolutions, Inches, Feet, Yards, Centimeter, Meters | 
         
        
            | Memory System | 
            13 readings are stored in memory and retained for 5 minutes 
            (last, max., min., and 10 measurements) | 
         
        
            | Detection | 
            Optical coupler, 60 pulses/rev. | 
         
        
            | Update Time | 
            1 second (typical) | 
         
        
            | Over-Range Indicator | 
            Flashing numerals | 
         
        
            | Batteries | 
            2 - 1.5 V AA | 
         
        
            | Battery Life | 
            Approx. 65 hrs. (DT-105A) 
            Life: Approx. 40 hrs. (DT-107A) | 
         
        
            | Operating Temp | 
            32 to 113° F (0 to 45° C) | 
         
        
            | Accessories Included | 
            2 cone adapters, 1 funnel adapter, 3-1/2" extension shaft, FPM-12-CBL Wheel for cable speed/length, carrying case, operating instructions | 
         
        
            | Product Weight | 
            0.9 pounds (400 grams) (without wheel) | 
         
        
            | Dimensions | 
            7.3" L x 2.4" W x 1.8" H | 
         
    
 
 
  
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