MB1240 XL-MaxSonar-EZ4 High Performance Ultrasonic Rangefinder Product Description The XL-MaxSonar-EZ4 has the highest noise tolerance and narrowest beam of any of our indoor sensors. The sensor is designed and calibrated to provide reliable range information to large targets even in environments with strong acoustic or electrical noise sources. MB1240 Features and Benefits * Narrowest beam in the XL-MaxSonar-EZ/AE sensor line * Low power consumption * Easy to use interface * Large target detection * Acoustic noise rejection * 3.3v to 5.5v operational voltage MB1240 Applications and Uses * Great for people detection * Security * Motion detection * Recommended for multi-copters and UAV's * Used with battery power * Autonomous navigation * Educational and hobby robotics * Collision avoidance -