Response frequency of 5 kHz* allows the use of high-speed application The GX-303S boasts a response frequency of 5 kHz and realizes high speed response. The response frequency of other sensor models has been also improved by up to 4 times as compared to our conventional models. Since the GX-300 series responds quickly to sensor ON/OFF judgement, it works well with a high-speed application and contributes to the reduction of equipment cycle time.