The 1000 PSI transducer is for measuring hookload and is typically connected on the rig floor.
The drum-style depth encoder is package for connection to a rig's draw-works/drum for tracking depth. It requires a straight-forward 3-point calibration procedure and produces highly accurate depth tracking.
One of the biggest causes of electronics failures in drilling environments is bad power. The rig power filter system applies both an on-line UPS along with a power filtering package. This system will eliminate power spikes, drops, phase shifting and other anomolies caused by interference from the rig-site power grid.