Sino HS315 Electric Vacuum Comparator

The HS315 Electric Vacuum Comparator uses the gas-gas push principle. The extra air sources provide active power to the pre-pressure for the entire calibrating system, perfectly replacing the heavy and complex handwork operation. This instrument is simple to use and generates the required testing pressure quickly, providing precise pressure control, and only takes less than 5 seconds to stabilize the pressure. Following the points mentioned above, its main advantage is that it saves both effort and time, making it ideal for heavy and repetitive calibration work.

  • Pressure Range: (-0.95~0) bar
  • Working Media: air
  • Weight: 4.9Kg


  • Quick stability, labour savings, and simple operation
  • Small and light in weight
  • Non-leaking, easy to clean