GP4000 Dive Computer & Digital Compass Great Gift at a Great Price! Use it as your Primary or as a backup.

By using the tried and tested DATA+ as the design basis, the new COMPASS+ dive has more exciting features packed into it. As the name suggests, GP-4000 has a built-in digital compass that can be activated with a touch of a button and orientation can be marked to assist navigation. The new dot-matrix screen gives a better visual presentation of a current or past dive profile. Users can also programme up to 3 separate NITROX mixtures before a dive and can switch between the gases mid-dive.
 

Specification:

Dimension: Thickness 28mm (1.1”) × Ø 62mm (2.4”)
Total length: (incl. straps): 328mm (12.9”)
Weight: 105g (3.7oz.)
Battery: User replaceable (CR2032 lithium battery)
Maximum depth rating: 100m (328ft)
PC Connectable: Yes (PC interface (PCI-3000) is available separately)

Features:

1. DIGITAL COMPASS - at a touch of a button!
2. Modified Swiss model Algorithm
3. Improved depth profile display
4. 3 programmable Nitrox mixtures (21 ~ 99%) – mid dive switch-able
5. Oxygen and nitrogen saturation level tracking
6. Dive timer / no-deco timer / surface interval and desaturation timer
7. Thermometer (from -5~40℃ / 23~140℉)
8. Current and maximum depth display
9. Audio and visual display (for unsafe ascent rate, deco stop violation partial pressure etc.)
10. Log book (maximum 60 dives)
11. Self altitude adjustment (maximum altitude 6000m / 19680ft)
12. No flight indicator
13. Date and time function
14. EL back light
15. Automatic activation