The FD420 range of Mobile Tracking and Telemetry Units provide a
selection of interfaces to Fleet Management, Job Dispatch and Tracking systems.
These interfaces include GSM/GPRS, CDMA/1xRTT, SMS, Bluetooth, WiFi, Serial and
The FD420 MTTU's provide support for real time GPS tracking
while allowing monitoring of 4 digital inputs and control of 2 digital outputs.
Optional expansion modules inside the GSM and CDMA units allow for monitoring of
additional digital IO, analogue inputs, counter inputs, serial CAN bus and