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Hitec HTS-SS Basic Telemetry Acro Pack 2.4GHz. Compatible with Optima 7 and 9 receivers, Spectra 2.4 module and Aurora 9 transmitter. Full telemetry system can transmit information to the Spectra module for display on LCD of the Aurora 9 and/or computer monitor (HPP-22 software is required).
Requires Installation into airplane, and setting up according to instructions. To activate full telemetry function, firmware upgrade is required for Aurora 9, Spectra 2.4 and Optima 7/9 as well as HPP-22.