pH sensors,pH recorders

Global Water's pH sensor is a rugged reliable water pH measuring device. The pH sensors are mounted on 25 ft of marine grade cable, with lengths up to 500 ft 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 x 8 inch PVC 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 PC320 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: 23 to +131°F (-5 to +55°C)
Size of Probe:
Standard: 1-1/4" Diameter x 10" L (3.2 cm dia. x 25.4 cm long)
Online: 2" Diameter x 12" L (5 cm dia. x 30.5 cm long)
Weight: Standard and Online 1 lb. (454 g)

pH Sensors Options & Prices

Prices listed are for United States and Canada only. Call or e-mail us for pricing in other countries.
Terms and Conditions

WQ201 pH Sensor (PN# DB0000) Includes 25 ft of cable.	$700
WQ201-O Online pH Sensor (PN# DBA000) Comes with 1 inch NPT PVC housing.	$723
WQEXC Extra Cable (PN# DH0000) Standard pH sensors include 25 ft of cable, but can be purchased with up to 500 ft of cable.	$2.10/ft
pH Sensor Electrode (PN# 00-449) pH electrodes should be replaced every six months and calibration should be done after every replacement.	$152

pH SENSOR CALIBRATION SOLUTIONS

pH 4.01 Buffer, 250 ml bottle (PN# 108800)	$Call
pH 7.00 Buffer, 250 ml bottle (PN# 108802)	$Call
pH 10.00 Buffer, 250 ml bottle (PN# 108804)	$Call
Calibration and maintenance set (PN# 108820) Includes 3 bottles with 250 ml each pH 4.01/ 7.00/ 10.00, 1 bottle with 250 ml pepsin cleaning solution, 1 bottle with 250 ml KCl solution 3 mol/l.	$Call

RELATED PRODUCTS

PH-10 Handheld pH Meter	$61
PHT-810 pH Tester	$261
EC500 Handheld Waterproof pH/Conductivity Tester Includes electrode, protective sensor cap, sample cup with cap, four 1.5V SR44W batteries, and a 48 inch (1.2m) neckstrap.	$152
EC510 Handheld Waterproof pH/Conductivity Tester Kit Includes an EC500 portable conductivity meter with sensor, 84uS, 1413uS, 12880uS calibration standards, pH buffer pouches (1 each of 4, 7, 10pH plus rinse solution), weighted base, protective sensor cap, 3 sample cups, four 1.5V SR44W batteries, carrying case, and a 48 inch (1.2m) neckstrap	$198
2V00-1011 VARIO pH Waterproof pH meter w/SenTix 21 electrode	$Call
3A30-110 pH 1970i Portable field pH meter w/universal power supply	$Call
2AA112 pH 3110 Portable Field pH meter w/case & accessories	$Call
WQ Water Quality Sensors	$Varies
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.	$3,205
WQL-pH pH Datalogger Included: pH datalogger, PC-program WQL-Log, USB cable, Li battery, shackle, and hex wrench.	$Call
GL500 pH Recorder pH recorder for sensor datalogging. Includes Global Logger Software. With weather proof enclosure and 12V battery.	$932
PC320 pH Controller	$varies
WQS pH Sampling System NOTE: pH sensor not included.	$Varies
EZ100 pH Sensor Display LCD readout display for both portable use and permanent installations.	$426