See How Handheld Display The See How is a optional accessory for use with the How Fast and How High sensors. Works with all How High Altimeters and How Fast Airspeed instruments - standard or metric Displays data without finger waving or flash counting 4-Digit LCD display; Simple 2-button control 10-Flight Memory Included battery lasts over a year High-Speed Optical Data Transfer Stays on the ground - no added weight to the plane Post flight, data is transferred via LED One display works with any number or combination of How High or How Fast units. Enables In-Flight Data Capture Unlocks a capability built into all How High and How Fast units Capture command triggered from R/C transmitter Up to 9 captured altitudes, plus peak, for each flight View Instruction Sheet Price: (USD) $37.35 Shipping from: $1.76 In stock now