Meet the Spectrum TDR 350 Soil Moisture Meter : another smart gadget that can help you take better care of your field. It performs turf surface temperature measurement and has Bluetooth and internal GPS. It records up to 50000 measurements with GPS coordinates, which can be saved to USB stick or share them to smartphones.
The TDR 350 has a large backlit display for easy viewing of measurements. More info is available here.