LEVEL PRODUCTS>FM105 USB TRANSMITTER FM105 USB TRANSMITTER Direct Digital Computer Interface Free Software Drivers for once only configuration (5min. job) Use your computer and spread sheet for real time displays & logging of multiple installations All units rangeable from computer keyboard Accuracy 10bit resolution Electrical connection :- submersible cable with integral junction/vent box and 1.8 mtr USB cable with USB connector direct to computer USB port