The Product Acoustic Signature System ("PASS") is a non-intrusive, non-destructive acoustic detection device that is handheld and battery operated, making it highly portable. It is used fast, easy, and secure on sealed containers of various sizes ranging from 2 inches to 8 feet in diameter. This device detects submerged contraband or hidden objects or compartments, classifies material contents, exposes containers/commodities that are fraudulently labeled, flags containers with ”like” from “unlike” items, and determines container fill levels. It's security application use is at border crossings, security checkpoints, and high value locations. PASS is exclusively manufactured by Spearhead Innovations. Click here for PASS 500 information sheet.

• PASS measures the speed of sound through an unknown material at a known distance and temperature.
• This acoustic velocity is compared with values in a database to identify or classify material.
  
• When a signal does not reach a known distance, contraband or a hidden compartment may be present.

• Detect submerged contraband or hidden objects or compartments.
• Classify/ID material contents (by name if in database).
• Expose containers/commodities fraudulently labeled.
• Flag containers with ”like” from “unlike” items.
• Determine and Monitor container fill levels.