Landing Height System is now FAA Certified under Non-Required Safety Enhancement Equipment (NORSEE)
Landing Height audio announcements for General Aviation Certified Airplanes
Here are some videos with the LHS installed on a Piper Warrior used during the FAA certification process.
Piper Warrior Landings (Day-time)
Piper Warrior Landings (Night-time with one Low Approach)
Piper Warrior crosswind Landing
LHS installed on G36 Bonanza