Features

• Three  varios with adjustable averaging time
• Absolute or relative  barometric altitude
• Real time clock
• Screen is large and  readable
• Sound is loud and  informative
• Dimensions 105x75x26 mm
• Holder
• Power supply: two AA -size batteries ( accumulators)
• Weight: 130 grams (with batteries)

Evolution of the ideas

embodied in  ZOOM-C.

Large screen, 

three buttons.

Improved performance pressure sensor.