Tonfly L&B QUATTRO Audible Altimeter

This audible altimeter fits in all Tonfly helmets and external audible ports.

The QUATTRO™ audible altimeter is the latest in micro technology and features the most advanced programming for accurately measuring freefall & canopy descent rates. The QUATTRO™ allows the skydiver four sets of warning altitudes for high speed and three for low speed flight. This provides added interactivity in configuring frequently used warning alarms.