... receiver, controller, connection cables and mounting fittings. 2. SNC series's specification * Fast response time <20ms.* LED indicator,easy ... .Type Z controller:Relay 1,2 indicator,passing light indicator,intercepting light indicator, power indicator,self-examing indicator.Electrical noise ... connector /receiver 3m,6-core connector Type 4 Safety Light Curtain SNC series,0-8000mm protection distance