HH SCIENCE provides high-performance ORP sensors for industrial processes, wastewater treatment, and chemical production. We offer OEM customization, RS485 digital output, and durable designs for harsh environments. Contact us to discuss your specific application needs or explore our OEM partnership options for tailored solutions.
Oxidation Reduction Potential (ORP)
SKU: HH2000
HH SCIENCE HH2000 Online Process pH Sensor
Original price was: US$90.00.US$69.00Current price is: US$69.00.
Select options SKU: HH2000P
HH SCIENCE HH2000P Pure Water Online Process pH Sensor | Glass Body Electrodes
Original price was: US$300.00.US$220.00Current price is: US$220.00.
Select options SKU: HH2100
HH SCIENCE HH2100 Water Online Process pH Sensor | Glass Body Electrodes | Ceramic Double Junction | Anti-Fouling | Clog-Resistant | Longevity
Original price was: US$205.00.US$154.00Current price is: US$154.00.
Select options SKU: HH2300
HH SCIENCE HH2300 Water Online Process pH Sensor | Glass Body Electrodes | Ground Glass Double Junction | Anti-Fouling
Original price was: US$220.00.US$167.00Current price is: US$167.00.
Select options SKU: HH2300P
HH SCIENCE HH2300P Ultra-Pure Water Online Process pH Sensor | Glass Body Electrodes | Ground Glass Double Junction | Anti-Fouling
Original price was: US$400.00.US$300.00Current price is: US$300.00.
Select options SKU: HH2500
HH SCIENCE HH2500 Water Online Process pH Sensor High Pressure Chemical Resistant Electrode | Cylindrical Acid/Alkali-Resistant Glass Membrane
Original price was: US$485.00.US$360.00Current price is: US$360.00.
Select options SKU: HH2500C
HH SCIENCE HH2500C Water Online Process pH Sensor for Complex and Aggressive Process Electrode | Cylindrical Acid/Alkali-Resistant Glass Membrane
Original price was: US$550.00.US$385.00Current price is: US$385.00.
Select options SKU: HH2500D
HH SCIENCE HH2500D Water Online Process pH Sensor Solution for Desulfurization & Denitrification Processes Electrode | Reinforced Cylindrical pH Glass Membrane |FGD/DeNOx Applications
Original price was: US$600.00.US$429.00Current price is: US$429.00.
Select options What is an ORP Sensor and Why Choose HH SCIENCE?
An ORP (Oxidation-Reduction Potential) sensor measures the ability of a solution to act as an oxidizing or reducing agent. Expressed in millivolts (mV), ORP indicates the cleanliness or chemical activity of water—essential in water treatment, industrial process control, disinfection monitoring, and chemical manufacturing. A positive ORP value suggests an oxidizing environment, while a negative value indicates reducing conditions.
ORP sensors work by comparing the potential difference between a measuring electrode (commonly platinum or gold) and a stable reference electrode. The sensor outputs a voltage that correlates to the electron activity in the solution, providing real-time insight into water chemistry dynamics.
HH SCIENCE offers high-performance ORP sensors engineered for industrial use and long-term stability. With advanced reference systems, high-purity platinum rings, and double junction designs, our sensors resist contamination, handle high temperatures (up to 130 °C), and maintain accurate readings even in harsh chemical environments. Whether for wastewater treatment, chlorine control, plating operations, or clean water applications, HH SCIENCE sensors ensure reliable, low-maintenance operation.
We also offer digital ORP sensors with RS485 Modbus output, customizable insertion depths, and OEM support. Choose HH SCIENCE for precision, durability, and trusted technical expertise in ORP sensing.
For Personal Clients
Our ORP sensors are perfect for home water systems, aquariums, and pools. Choose from ready-to-ship models with accurate, stable readings and easy setup. Simply select the model that fits your needs and order directly—no technical expertise required.