Van London

Precision Electrodes and Sensors for Industrial & Environmental Measurement

Reliable measurement starts with reliable sensors

When you work in process control, water treatment, or energy production, accurate measurement isn’t optional — it’s critical.

Van London, part of AlpHa Measurement Solutions, develops and manufactures high-performance electrochemical sensors and electrodes for precise, real-time monitoring of liquids and gases in demanding industrial and environmental applications.

Built on decades of engineering expertise, Van London products combine robust design, chemical resistance, and long-term stability, helping you measure confidently and maintain process efficiency.

About Van London

Founded in Houston, Texas, Van London has grown into a trusted global supplier of pH, ORP, ISE, chlorine, dissolved oxygen, and conductivity sensors, as well as analyzers and transmitters. Now part of AlpHa Measurement Solutions, the company delivers advanced electrode technology — including GX5 Glass and Twist-Lock hot-tap assemblies — designed for high accuracy and simple integration.

From biogas plants and chemical production to marine systems and environmental monitoring, Van London sensors provide the data you need to control, protect, and optimize your process.

Tailored Solutions for Every Industry

Energy & Power

In energy production, reliability is everything. Whether you monitor boiler feed water, cooling systems, or flue gas scrubbers, unstable pH or conductivity can compromise performance and safety. Operators often struggle with sensors that drift, foul, or require constant recalibration. Van London’s electrodes and conductivity cells are built for continuous operation under pressure and temperature extremes. With long-life glass formulations and rugged housings, they deliver stable, traceable readings and reduce maintenance downtime — keeping your plant efficient and compliant.

Chemical & Process Industries

Chemical and process environments are tough on sensors: corrosive media, temperature swings, and high solids can cause frequent sensor failure and unreliable measurements. In these settings, Van London’s advanced electrode technology — including GX5 glass and chemically resistant reference systems — ensures accurate, repeatable results even in aggressive conditions. With options for pH, ORP, ISE and conductivity, these sensors integrate seamlessly into process control systems and minimize calibration drift. The result is better process optimization, reduced waste, and improved product quality.

Water & Wastewater

Operators in water and wastewater treatment need accurate data to ensure compliance, optimize disinfection, and manage operating costs. Conventional chlorine and pH sensors often require frequent replacement or manual cleaning, causing unnecessary downtime. Van London’s chlorine, DO and pH probes are engineered for stability and low maintenance, with replaceable membranes and long-life reference junctions. Their analyzers deliver continuous, reliable measurement, enabling precise dosing control and early detection of process deviations — helping you maintain water quality, protect infrastructure, and meet regulatory limits.

Environmental & Biogas

Environmental and biogas applications demand sensors that can handle variable, sometimes harsh conditions — from digesters rich in sulfides to fluctuating humidity and gas composition. Traditional sensors often lose accuracy or fail prematurely. Van London offers ion-selective electrodes (ISE) and dissolved oxygen sensors that maintain stability across changing media, delivering accurate, real-time monitoring of key parameters like ammonia, nitrate, methane and CO₂. With robust construction and digital connectivity options, they support better process insight, compliance with emission targets, and overall plant sustainability.