... level relay,Floatless Level switch) AFS-GR Relay(Liquid level relay,Floatless Level switch) AFS-GR CLASSIFICATIONFLOATLESS RELAYMODELAFS-GRDIMESIONS(mm)50H×40W ... POWER3.2VAAMBIENT TEMPERATURE-10~+55AMBIENT HUMIDITY45~85%RH Relay(AFS-GR Liquid level relay,Floatless Level switch)