Van London Company LogoVan London Company, your source for pH, ORP (Oxidation-Reduction Potential), Conductivity, Oxygen, and Ion Selective Electrodes, for Laboratory, Biotechnology and Medical Applications
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Manufacturing Custom Electrodes
Discover how we can take care of your electrochemical sensor needs.
Van London Co. (aka Van London pHoenix Co.) is a manufacturer of high quality electrochemical analytical sensors. We specialize in manufacturing pH, ORP (Oxidation-Reduction Potential), Conductivity, Oxygen and Ion Selective Electrodes (ISEs) designed for Laboratory, Industrial, Biotechnology and Medical applications.
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Knick Logo VLC is the authorized exclusive distributor in the USA for the Knick product line of pH Meters, Dissolved Oxygen Meters, Conductivity Meters, Portable Meters, In-Line Retractables, In-Line Fittings, the digital MemoSens® Electrode, “ComFu®” - a digital wireless system between sensor and meter, and a fully automated clean and calibrate in place “UniCal®” system which is a perfect compliment to the VLC electrodes focusing on industrial markets offering Explosion Proof equipment satisfying up to Class 1 / Div 1 requirements.

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Van London-pHoenix Co.

Van London Company
10540 Rockley Road
Houston, TX 77099

800-522-7920 (Toll Free)
832-456-6641 (Voice)
832-456-6642 (Fax)

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We are in the process of improving our website, to bring you a new Van London Co experience. As such, you may experience technical issues while navigating through our website. Please note that we do not have an automated answering service, and should you run into any issues with the website, we are available for live support at 832-456-6641 or 800-522-7920. Just ask for customer service and we will happily work with you to answer any question you may have and e-mail any literature you might need. We can also be reached by email at We look forward to serving you.
Current London-pHoenix Co. News
Upcoming Tradeshow   The next Tradeshow VLC will be attending will be WEFTEC 2016. We will be an exhibitor, at Booth # 1255. Come visit us! The next WEFTEC is being held September 26-28, in New Orleans, Louisiana at the at the New Orleans Convention Center. LEARN MORE
New exclusive USA distribution partner  
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Current London-pHoenix Co. News
Trade Shows   We will be attending the following Trade Shows (listed in chronological order): LEARN MORE
Current London-pHoenix Co. News
Precious Metal Pricing   Learn how precious metal pricing affects the cost of your electrode. LEARN MORE
The Chemistry of Chlorine    LEARN MORE
Practical pH: Theory and Use   This article will discuss the principles and theory behind the pH measurement and relate these to the actual pH measurement done in the field / laboratory. LEARN MORE