Garnet SeeLevel Special 808-P2 Important Operator Information page 5

8. The display has the ability to drive a remote transmitter for applications
which require the transfer of the data from the gauge to another piece
of equipment.
9. The density of the product can be entered into the gauge to enhance
measurement accuracy. The amount that the float sinks into the
product is dependent on the density of the product, so by entering the
density the accuracy of the gauge can be maintained as the density
varies from load to load.
10. The alarm output functionality has been expanded. See chapter 3 for
details.
808-P2 Manual Page 5