pH sensor for remote water quality measurements.

pH sensors,pH recorders

  • Fully encapsulated electronics
  • 4-20 mA output
  • Marine grade cable with strain relief
  • Stainless steel housing
  • Replaceable pH sensor element
pH Sensors Product Description

Global Water’s pH sensor is a rugged reliable water pH measuring device.  The pH sensors are mounted on 25’ of marine grade cable, with lengths up to 500’ available upon request.  The pH sensor output is 4-20 mA with a three wire configuration.  The pH sensor's electronics are completely encapsulated in marine grade epoxy within a stainless steel housing (online version has 1” PVC x 8” pipe nipple, threaded both ends with cap).  The pH sensors also use removable shields and replaceable pH sensor elements for easy maintenance.

Global Water's GL500 pH Recorder adds recording capabilities to the pH sensors.  The GL500 pH Recorder connects to the pH sensor's 4-20mA output to record data.  In addition, Global Water offers the PC300 pH Controller to use the pH sensor's output to control pumps or alarms.

pH Sensors Specifications

Output: 4-20 mA
Range: 0-14 pH
Accuracy: 2% of full scale
Maximum Pressure: 40 psi
Operating Voltage: 10-30 VDC
Current Draw: 5.5 mA plus sensor output
Warm Up Time: 3 seconds minimum
Operating Temperature: -5° to +55°C
Size of Probe:
     Standard: 1-1/4" Diameter x 10" L (3.2cm dia. x 25.4cm long)
     Online: 2” Diameter x 12” L (5cm dia. x 30.5cm long)
Weight: Standard and Online 1 lb. (454 g)

pH Sensors Options

WQ201 pH Sensor    
WQ201-O Online pH Sensor
Comes with 1” NPT PVC housing.
WQEXC Extra Cable
Standard pH sensors include 25' of cable, but can be purchased with up to 500' of cable.
00-449 pH Sensor Electrode
pH electrodes should be replaced every six months and calibration should be done after every replacement.
PH-10 Handheld pH Meter    
PHT-810 pH Tester    
DUO-60 Conductivity and pH Meters    
VARIO pH Waterproof pH meter w/SenTix 21 electrode    
pH 1970i Portable field pH meter w/universal power supply    
pH 3150i Water proof pH meter w/case & accessories    
WQ Water Quality Sensors    
WQMS Water Quality Monitoring System
The standard unit includes a datalogger, temperature sensor, pH sensor, conductivity sensor (with a 0-5000µS range unless otherwise specified), and DO sensor.
GL500 pH Recorder
pH recorder for sensor datalogging.  Includes Global Logger Software.  With weather proof enclosure and 12V battery.
  pH recorder
PC300 pH Controller    
WQS-STD pH Sampling System
NOTE: pH sensor not included.
  pH Sampling System
EZ100 pH Sensor Display
LCD readout display for both portable use and permanent installations.
  pH sensor,pH transmitter display

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