<table class="table table-bordered">
  
  <thead>
  <tr>
  <th colspan="2">rpm - Optical</th>
  </tr>
  </thead>
  <tbody>
  <tr>
  <td>Measuring range</td>
  <td>
  1 to 99999 rpm
  </td>
  </tr>
  <tr>
  <td>Accuracy</td>
  <td>
  ±0.02 % of mv
  </td>
  </tr>
  <tr>
  <td>Resolution</td>
  <td>
  0.01 rpm (1 to 99.99 rpm)
  0.1 rpm (100 to 999.9 rpm)
  1 rpm (1000 to 99999 rpm)
  </td>
  </tr>
  </tbody>
  </table>
  <table class="table table-bordered">
  
  <thead>
  <tr>
  <th colspan="2">rpm - Mechanical</th>
  </tr>
  </thead>
  <tbody>
  <tr>
  <td>Measuring range</td>
  <td>
  0.1 to 19999 rpm
  </td>
  </tr>
  <tr>
  <td>Accuracy</td>
  <td>
  ±0.2 % of mv
  </td>
  </tr>
  </tbody>
  </table>
  <table class="table table-bordered">
  
  <thead>
  <tr>
  <th colspan="2">General technical data</th>
  </tr>
  </thead>
  <tbody>
  <tr>
  <td>Display type</td>
  <td>
  LCD
  </td>
  </tr>
  <tr>
  <td>Display size</td>
  <td>
  one-line
  </td>
  </tr>
  <tr>
  <td>Display function</td>
  <td>
  5 digit LCD display
  </td>
  </tr>
  </tbody>
  </table>