Request InfoWavelength Electronics Inc.The RHM5K-CH unipolar temperature controller from Wavelength Electronics achieves precision control at off-ambient temperatures. The proportional-integral-derivative control loop drives resistive heaters and thermoelectric coolers. Offering a small footprint and high stability of <0.003 ºC, it supplies a drive current of up to 5 A. Onboard 12-turn trimpots control temperature set point, proportional gain and output voltage limit, all of which are user-adjustable. 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