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PS-200: Dual TDS Controller - DISCONTINUED

PS-200: Dual TDS Controller - DISCONTINUED
Controller Sensor with Cable A photo of the sensor with cable. The sensor is detachable.
Where to buy: Find a distributor in your region.


Instruction Manual


  • Monitors and controls TDS levels of two water lines (e.g., feed water and product water) for high output commercial systems.
  • Large, bright L.E.D. display.
  • An alarm will sound if the TDS level rises above the user-set level for the output water.
  • Installs easily in minutes.
  • Includes two sensor probes (at no extra cost).
  • The PS-200 is a monitor for Line 1 (in-line) and a controller for Line 2 (out-line).


Range: 0 - 999ppm
Accuracy: ±2%
Conversion Factor: NaCl (avg. 0.5)
Resolution: 1 PPM
ATC: Yes (1 - 65 degrees Celsius)
Calibration: Adjustable
Setting: Controlled by on-screen up/down buttons
Relay Control: The unit will open or close a circuit via dry contacts when the ppm level (out line/line 2 only)reaches or exceeds the control setting (simple switch).  It can be used to control a pump, solenoid valve or other device. (In line/Line 1 does not have a control function)
Relay Voltage: 5V (simple switch)
Alarm: Optional steady beep for Out line/Line 2 (set by user)
Display: Bright 5/8" L.E.D. display
2 Probes: 1/2" bushing (NPT), 3 meter (9.8 ft) shielded cable
Power supply: AC 110V / AC 220V
Dimensions: 7.2 x 7.2 x 10.2 cm (2.8 x 2.8 x 4 in.)
Monitor Weight: 476 g (1 lb .8 oz)
Total Weight: 822.1 g (1 lb 13 oz)