pH Probes:

Available Products:

	Model 10 – General purpose ½” NPT pH sensor: Temperature; -5~80°C. Pressure; 0~100 psi. Cable length; 3 metres. Ref. cell; Single junction, KCl/AgCl. Ref. junction; Porous teflon. Applications; Non-toxic solutions e.g. Potable water, cooling towers, fresh/salt water aquariums.
M-10	Model 10 - General purpose ½” NPT pH sensor.
M-10-ORP	Model 10-ORP - General purpose ½” NPT ORP sensor. Used for Redox measurement in relatively clean waters.

Download M-10 Datasheet

	Model 11 – General purpose ¾” NPT pH sensor: Temperature; 0~80°C. Pressure; 0~100 psi. Cable length; 3 metres. Ref. cell; Double junction, KNO3 and KCl/AgCl. High resistance to electrode poisoning solutions. Applications; For both submersible and insertable use in process and waste water.
M-11	Model 11 - General purpose ¾” NPT pH sensor.
M-11-Pt100	Model 11-Pt100 - General purpose ¾” NPT pH sensor. Includes a Pt100 sensor.
M-11-Pt100-HT	Model 11-Pt100-HT - General purpose ¾” NPT pH sensor. High temp. version including a Pt100 sensor. High temperature; 0~110°C. High pressure; 0~150 psi. Do not use where ethers, ketones and most aromatic hydrocarbons are present. If these solvents are present use the standard version regardless of the temperature.
M-11-ORP	Model 11-ORP - General purpose ¾” NPT ORP sensor. Used for Redox measurement in waste water treatment. Platinum sensing element.

Download M-11 Datasheet

	Model 12 – General purpose ¾” NPT pH sensor for flowing, viscous applications: Temperature; 0~80°C. Pressure; 0~100 psi. Cable length; 3 metres. Ref. cell; Double junction, KNO3 and KCl/AgCl. High resistance to electrode poisoning solutions. The concave sensor configuration protects the pH bulb from particulate matter and provides a cleansing flow without affecting the line pressure characteristics. Applications; Ideal for pipelines with flow velocities greater than 30 cm/sec. Typical applications include batching and process control in the chemical, petrochemical, pulp/paper and electroplating industries.
M-12	Model 12 - General purpose ¾” NPT pH sensor.
M-12-Pt100	Model 12-Pt100 - General purpose ¾” NPT pH sensor. Includes a Pt100 sensor.
M-12-Pt100-HT	Model 12-Pt100-HT - General purpose ¾” NPT pH sensor. High temp. version including a Pt100 sensor. High temperature; 0~110°C. High pressure; 0~150 psi. Do not use where ethers, ketones and most aromatic hydrocarbons are present. If these solvents are present use the standard version regardless of the temperature.

Download M-12 Datasheet

	Model 21 – General purpose ¾” NPT pH sensor with long insertion length: Temperature; 0~80°C. Pressure; 0~100 psi. Cable length; 3 metres. Ref. cell; Double junction, KNO3 and KCl/AgCl. High resistance to electrode poisoning solutions, typically those with cyanide, ammonia, sulphide and heavy metals in appreciable concentrations. Applications; A combination pH sensor for insertion in tanks and large diameter pipes using process and waste water.
M-21	Model 21 - General purpose ¾” NPT pH sensor with long insertion length.
M-21-Pt100	Model 21-Pt100 - General purpose ¾” NPT pH sensor with long insertion length. Includes a Pt100 sensor.
M-21-Pt100-HT	Model 21-Pt100-HT - General purpose ¾” NPT pH sensor with long insertion length. High temp. version including a Pt100 sensor. High temperature; 0~110°C. High pressure; 0~150 psi. Do not use where ethers, ketones and most aromatic hydrocarbons are present. If these solvents are present use the standard version regardless of the temperature.

Download M-21 Datasheet

Notes:

For alkaline conditions between pH 7 ~ 13 use a probe that has the –HT option.
For conditions above pH 13 contact Vespo .

The pH model type probes are ideal for use with our LPI-pH pH transmitter, or with our pH-HR pH data logger (for the best possible accuracy with the LPI-pH or pH-HR, we recommend using a probe that includes the -Pt100 sensor option).