Suunto PM-5/360 PC OPTI Clinometer Dive Knives This subframe provides incredible strength

This subframe provides incredible strength and rigidity as well as eliminating the bulky external plastic frame in other masks

Rubber covered stabilizers provide improved performance

The most modern and reliable integrated weight system: spacious

If you want to share your experiences with a community of fellow divers or learn about the new dive sites around the world

Suunto PM-5/360 PC OPTI Clinometer Dive Knives This subframe provides incredible strengthScales for slope in degrees and % Accurate measurement of heights and slopes Optical reading of card for higher accuracy The compact hand held Suunto PM 5 clinometer allows to measure heights, slopes, and angles from a variable distance quickly and with high accuracy. This particular model uses a percentage scale. The liquid inside the tool wont freeze or evaporate as long as you stay within the 30 C to +60 C 22 F to +140 F temperature range. Sturdy