Temperature Control
 ●A precise Pt 1000 temperature sensor
  controls the air jacket heating for constant
  temperature. In case of failure, the system
  is equipped with a second circuit, taking
  over control to keep the temperature at the
  preset value.
 

  CO2 Control
●The CO2 concentration is measured with a
  highly reliable TCD sensor. The sensor is
  auto calibrated on every auto-start routine.
 

  Humidification
●For reducing the surface area, the water
  pan has been eliminated and the bottom of
  the chamber is used as a water reservoir.
  Therefore, a quicker evaporation rate has
  been achieved, through a greater water
  surface area and supported by the direct
  heat transfer from the bottom of the
  chamber.

Minimal Surface
●The BB 15 chamber is consequently
  designed for a less contamination-prone
  surface area. It doesn’t have any air ducts
  and no duplicate side walls. The shelf
  system has been reduced to the absolute
  minimum. Even the water pan has been
  eliminated. Therefore, the BB 15 has up to
  50% less surface than other incubators.