The HRUSB-MaxSonar-EZ4 is the narrowest beam width sensor that is also the least sensitive to side objects offered in the HRUSB-MaxSonar-EZ sensor line. The HRUSB-MaxSonar-EZ4 is an excellent choice when only larger objects need to be detected.
The MaxBotix high resolution MB1433 HRUSB-MaxSonar-EZ3 is a narrow beam sensor with good side object rejection.
The MaxBotix high resolution MB1423 HRUSB-MaxSonar-EZ2 is a good compromise between sensitivity and side object rejection.
The remote receiver can be used as a replacement for the AR6200, AR7000 and the AR9000 remote receivers. It can also be used as an optional fourth remote receiver for the AR9000.