RS TLM Indicators. The TLM100 ; TLM200 indicators are a simple way to help users understand if a door or gate is locked or unlocked. Red for STOP, and green for GO. LED indicator 12Vdc Programmable Stainless Steel Faceplate Brushed satin front panel Narrow ( ; RS 870-0727 RS 870-0727 ) and Single Gang ( ; RS 870-0736 RS 870-0736 ) Size