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Active Sonar screenshot 1
Description
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Top 100 overall in 48 countries!
Top 10 overall in 17 countries!
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-Instantly measure distances with high frequency sonic pulses
-Color coded echo location display
-Simple easy to use interface
-US and Metric units configurable
-MUST MEASURE OBJECTS MORE THAN 2.5 FEET AWAY (PLEASE READ THE INSTRUCTIONS)

Bats navigate through the night air by emitting high frequency sonic pulses and listening for echoes. Submarines use a similar technique to determine the distance and location of underwater targets. Now you can have bat-like vision on your iPhone with Active Sonar!!

Active Sonar emits a high frequency sonic pulse...