Sherwood "Beacon" Dive Computer

Sherwood "Beacon" dive computer.  Air integrated computer, full color display, very compact and user friendly.  All pictured manuals and accessories included.  Excellent computer at well below the price of a new unit.
Features:

Ultra-bright high contrast full-color TFT Display, easy to see and read in direct sunlight.
Simple, Easy, Functional: Easy to use interface with an intuitive menu structure and 3 button navigation.
Audible alarms and visual color-changing segments provide cautions for additional safety
Patented Gas Time Remaining Algorithm provides calculations in real-time
Easy to read Full Tilt digital compass with reverse heading
Works with the DiverLog+ App.
Modified Haldanean Algorithm with 12 tissue compartments
Compatible with lithium or rechargeable lithium batteries.
Power save mode turns to screen off when 2 minutes elapse on the surface with no button operations.