The GA-311 series of inductive proximity sensors provides a high performance solution in a full-featured separate amplifier configuration. With a 3.3kHz response frequency, the GA-311 series is suitable for high-speed metal sensing applications. All of the sensor heads are IP67g rated, so they are resilient in harsh environments including water, oil, dust, or dirt. Sensor heads range from the ultra small GH-2SE, with a 2.8mm diameter, to the long range GH-F8SE, with a detecting distance of 4mm. The GA-311 amplifier utilizes the one-touch connection interface that is common to other SUNX products such as the FX-300 series fiber optic sensor or the LS laser sensor. This allow for the GA-311 to be connected together with your other sensors to save power supply wiring. Large operation and disconnection alarm indicators are incorporated into the amplifier for easy determination of output status as well as faults in the wiring of the sensor head.