BCA's longest length probe. The Stealth 330 is designed for snow safety professionals and those traveling in the deepest snowpacks. All BCA probes feature dual-sized depth markings that are easy to see when you’re performing a rescue or logging a snow profile. Pro-level aluminum models are laser-etched to prevent wear. This Stealth Quick-Lock hardware creates a smaller bundle when folded up and eliminates loose cables that can whip you in the face when you’re furiously probing.