The SPOT Trace is the perfect tool to locate your polystyrene probe after it`s decent. The SPOT Trace is completely independent of the mobile networks and relies 100% on the built in GPS. Position data is transmitted through the network of Globalstar. Due to the robust and waterproof design, long-life batteries, motion alert and different live tracking options (2.5; 5; 10; 30; and 60 minutes) the SPOT Trace is the ideal tracking device for your stratoflight. The operating altitude of up to 21,000ft / 6.500m enables you to track a live signal during the ascent, but especially during the landing which makes the recovery much easier. The smartphone app provides you with the position data and additionally transmits it to Google maps. The SPOT Trace in combination with the GPS Tracker TK 102 are the perfect supporter for your successful recovery of the probe.