The RRC2+ is a barometric dual-deploy altimeter, with a feature set for beginners and experts alike. The unit is extremely small and very easy to install and operate. It's programmed using a very straightforward DIP switch configuration method. No User Manual or documentation is required on the field, as all the switch settings are printed right on the altimeter itself. The RRC2+ epitomizes the "buy it and fly it" altimeter, with a price point that your rocketry budget will appreciate as well.