The 'RRC3 Xtreme' altimeter is a barometric dual-deploy altimeter, with the features of high-end units, at the cost of those with a more modest feature set. In addition to basic dual-deploy capability, the RRC3 Xtreme is a multi-flight recording unit, allowing you to fly all day, without the need to stop and download data in between flights. The RRC3 Xtreme also provides a third, highly flexible and programmable 'Auxiliary' output which can provide staging, airstarts, backup events, and a host of other applications. The RRC3 Xtreme can also support real-time data streaming capabilities in flight for telemetry or for interface with other custom control systems. Despite this unrivaled suite of intrinsic capabilities and expandability, the RRC3 Xtreme still maintains its simple "buy it and fly it" operations.
For high reliabilty purposes, the RRC3 Xtreme Altimeter replaces the standard electrolytic brownout capacitor with a solid-dielectric type for operations in virtual vacuum and near space conditions. Electrolytic capacitors have (semi-)liquid dielectrics, which can boil off in vacuum.
The Xtreme model is rated for a max ceiling of 100,000' MSL.
RRC3 User Manual