Request InfoArroyo Instruments LLCArroyo Instruments has released the 5230 TECSource temperature controller, which offers 0.004 °C stability when used with the company’s LaserMount or other mounts. The controller provides 3-A/4.5-V (13.5 W maximum) output power to drive package Peltier coolers. Its large vacuum fluorescent display enables reading of measurements from various angles and simultaneously shows current, voltage, and actual and set-point temperatures. 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