[size=medium]It added a LOT of confusion when discussing models for sale or models you have questions about.
Tesoro made four (4) Silver SABRE models:
The Silver Sabre (original) which had a 7" coil standard, two knobs to adjust Discrimination and Sensitivity, and a toggle to select a variable Discriminate mode or what they termed "All Metal", but it was simply a motion-disc. mode with minimal rejection and accepted most metals, ferrous and non-ferrous.
The Silver Sabre Plus, which was supplied with an open-center 8" coil and had a toggle to select a threshold-based All Metal mode for pinpointing or motion Disc. mode. It, too, had external Sensitivity and Disc. adjustments.
The Silver Sabre II, which was their first turn-on-and-go model featuring the ED-120 discrimination (a lower-end adjustment range than earlier models), and had the brown 8" open-center coil, Discrimination and Sensitivity controls, a toggle to select motion Disc. or conventional, threshold-based All Metal for searching or pinpointing, and a small knob that protruded from the back of the housing and allowed the operator to adjust the threshold trimmer on the circuit board.
The Silver Sabre