The HRLV-MaxSonar-EZ3 is a narrow beam sensor with good side object rejection. The HRLV-MaxSonar-EZ3 has slightly wider beam width than the MB1043 HRLV-MaxSonar-EZ4 which makes it a good choice for when the HRLV-MaxSonar-EZ4 does not have enough sensitivity for the application.
The MaxBotix high resolution, low voltage MB1043 HRLV-MaxSonar-EZ4 has a narrow beam and is an excellent choice for detecting larger objects.
The MaxBotix high resolution, low voltage MB1023 HRLV-MaxSonar-EZ2 is a good compromise between sensitivity and side object rejection.
This is a 2.5mm x 5.5mm right angle barrel plug with 6ft of 18 gauge wire. This will plug into our camera receivers and some of our cameras.
SparkFun's minimal design approach to Arduino. This is a 5V Arduino running the 16MHz bootloader.