GESTRA LRR1-12 steam boiler TDS controller The Gestra LRR 1-12 Controller with accessories an ideal continuous blowdown valve controller to ensure your boiler is running at maximum efficiency. The LRR1 - 12 is an accurate and reliable TDS controller for steam boilers. It has a back lit alpha - numeric display. With an integral 24 / 7 intermittant blowdown timer and a 0/4 - 20 mA output of TDS. This unit is multi voltage 115 - 230 Volts. Please allow 2-3day delivery
