The DBOxxx series differential barometer/altimeter (patent pending) module is a higher accuracy version of the EMOxxx. The DB(BR)xxx and DB(BR)Gxxx models are ruggedized units integrating this module.
This OEM module provides atmospheric pressures and derived elevations at a rover using corrections transmitted from a stationary base. In traditional systems elevations are calculated based on pressure readings for a stand-alone unit and are subject to the errors inherent with environmental changes in pressure. Some applications of this versatile engine include indoor elevations, building pressurization monitoring, multi-node telemetry networks and UAV altitude references.
DBOxxx OEM Differential Barometer/Altimeter
Includes antenna. License free 433, 868 and 915MHz versions available (check regulations in your area). A minimum of two units are required for a differential solution, the price listed is for a single unit.