HM Digital introduces two new extended range EC/TDS controllers, the PSC-150 and PSC-154, with ranges of zero to 9,999 ppm/S. They feature on-screen temperature display in Celsius or Fahrenheit, digital calibration, bright three-color LED panels, ATC, programmable set points and more. The PSC-150 has an analog relay signal, while the PSC-154 has a 4-20mA output signal. Both include choice of sensor (tank or pipe length) at no extra cost. http://www.hmdigital.cominfo@hmdigital.com