Search This Site

(Search by Product Type i.e. Level or Brand Name i.e. Walchem)

pH And ORP Electrodes WEL Series
From Walchem Corporation

USA Toll Free: 1-800-730-0302 Tel: 416-240-1920 -

WEL Series pH And ORP Electrodes

Walchem's WEL Series electrodes are cost-effective differential pH and ORP electrodes for industrial applications. They are modular in design with a rugged CPVC housing that contains the electronics; pH and ORP cartridges can easily be connected or replaced in minutes without tools.

    • Differential preamp

    • Universal mounting, easy to install

    • Easily replaceable electrode cartridges

    • Electronics are not discarded with the electrode

    • Optional ATC

    • Cartridge Styles:

      • Flat Surface

      • Bulb / Rod

      • HF Resistant

      • Low Ionic Strength pH cartridge

    • Resistant to electronic noise, ground loops

    • CE Performance & Safety Certifications

Measurement Performance
Range 0 to 14 pH (0 to 12 without sodium ion error) +/-1999 mV (ORP)
Response 95% in less than 5 seconds
Temperature Range with preamplifier 32 to 158ºF (0 to 70ºC)  
  without preamplifier 32 to 212ºF (0 to 100ºC)  
Pressure Limit 100 psi

WEL Series pH And ORP Electrodes Downloads




About Us

Metex Corporation Limited has been providing superior products and services to the process control, chemical treatment, waste water, industrial and manufacturing industries for over 25 years. It is our goal to continually provide our customers with the best possible equipment, technology, and service.


Our Products

Dataloggers, sensors, pumps, recorders, hand held instruments, flow instrumentation, level controls, valves, instrumentation, containers, tanks, transmitters, data loggers, digital indicators, mixers and agitators, pressure intrumentation, analyzers and controllers for a variety of industrial applications such as water quality, pH/ORP and more.

Website Content

Water Analyzers and Controllers, Wireless Products, Corrosion Monitoring Equipment, Cooling Tower and Boiler Controllers, a wide variety of Pumps, Valves, Dataloggers and Recorders, HVAC, Instrumentation, Skids and Systems, Containers and Tanks from world leading manufacturers are products you will find on this site.

Get in Touch