Record and easily display your flight data with this handy unit.
Without this unit you can still operate the How-High and How-fast units, though will need to save the data elsewhere between flights.
The See-How hand held unit will capture the LED data and save it.

Spec.
Works with all How-High and How-Fast units.
Stays with you, not in the plane. No weight penalty.
10 flight memory with 9 values per flight.