Powerbox PBS VARIO Sensor for most radio makes including the Core 6625Powerbox PBS VARIO Sensor for most radio makes including the Core 6625 The PBS Vario from Powerbox is an extremely precise climb rate and altitude sensor for use with the PowerBox CORE, but it is also suitable for other telemetry systems, Inc Jeti EXBUS and Futaba S. BUS2. The PBS Vario is based on the latest generation of MEMS pressure sensor, and is capable of accurately measuring differences in height of 10 cm. A digital filter developed in house