PTP Sonar Unit

  Sends and receives ultra-sonic signals (pings) just like a submarine

-  The pings react as objects move closer or away from the unit

-  The closer the object gets, the faster the pings;  the further away, the slower the pings

-  A red flashing LED and audible tone provide both visual and audible references for the pings

-  We've even added an infrared LED so activity can be picked up on night vision cameras!

-  The unit has a 10 foot and 45 degree active area

-  Great for monitoring potential movement of objects

-  Runs off one 9 volt battry (not included)