Product description Altus APS-3 RTK GPS GLONASS
APS-3 :

136 Channel GPS + GLONASS receiver
Integrated Quad-Band GSM/ GPRS Modem or CDMA Modem
Integrated Digital UHF transceiver, 406-470 MHz
Integrated Bluetooth
Dual Hot-Swap Li-Ion Batteries with Fuel Gauge
Removable min.2 GB SD Card storage

With Altus’ s open architecture philosophy, the user has the choice of data collector software from MicroSurvey FIELDGenius or Carlson SurvCE to custom software.Rugged field computers are used to communicate with the APS-3 via Bluetooth for a cable free operation. Furthermore, the APS-3 houses two hot swappable Li-lon batteries for continuous operation. Re-charging is done within a few hours with the included charger.