Hanna Instruments Australia
The Hanna Advantage: A Worldwide Leader in Technology and Innovation 100% Quality  360 Value
Sales: (03) 9769 0666   |    Mon to Fri: 8:30am – 5:00pm
Hanna Instruments Australia
Sales: (03) 9769 0666   |    Mon to Fri: 8:30am – 5:00pm

ORP Electrode for Process Control and Monitoring - HI2001


Prices include GST. Not all items are in stock. Call 03 9769 0666 to confirm.

HI2001 is an economical process ORP probe with a BNC connector. The BNC connector is universal and works with any ORP (mV) meter that has a BNC probe input. The HI2001 is a double junction design with a polymer reference for long life in many common industrial applications.

  • 1/2″ and 3/4″ NPT threads for in-line and submersion mounting
  • Chemically resistant PTFE junction
  • Universal BNC connector


The HI2001 has a platinum sensor for the measurement of ORP for a variety of applications including plating, swimming pools, water treatment, and food disinfection. The platinum sensors are commonly used to monitor the addition of oxidizing chemicals including chlorine, chlorine dioxide, and ozone. The probe can be used for monitoring the addition of reducing chemicals like sodium metabisulfite.

This cost-effective probe has threads on both ends for in-line or submersion mounting.

Sensor Type

The platinum sensor provides the best response over a wide range of applications.


Polyvinylidene fluoride (PVDF) is a plastic that is resistant to most chemicals and solvents. It has high abrasion resistance, mechanical strength, and resistance to ultraviolet and nuclear radiation.

PTFE Junction

This type of junction is often used on electrodes with polymer electrolytes. Porous polytetrafluoroethylene (PTFE) is a hydrophobic material that is available with different porosities that help to minimize clogging. PTFE is widely used in industrial applications due to its high range of chemical resistance.

BNC Connector

The HI2001 uses a BNC connector. This type of connector is universal in that it can be used on any ORP process controller, indicator, or transmitter that has the female BNC probe input.

External Thread

The ½” NPT thread of the HI2001 front end allows for in-line installation in pipes while the 3/4″ threads on the backend (cable side) allows for submersion mounting with tanks or other vessels.

Specification Name Detail
SKU HI2001
Junction / Flow Rate double, PTFE
Electrolyte polymer
Max Pressure 6 bar (87 psi)
Recommended Operating Temperature -5 to 80°C
Body Length 86 mm (3.4")
Cable 3 m (9.8')
Connection BNC


All prices are inclusive of GST and not all items are stock items, if you require an immediate solution please send an email to sales@hannainst.com.au or call us on (03) 9769 0666.

Free standard delivery: We offer free delivery within Australia on orders over $100, typically arriving within 5 to 7 days. Delivery times may vary depending on the courier service and the recipient's location. Free shipping is not available with other offers or discounts.

Same-day despatch: Place your order before 1 PM Monday to Friday for same-day despatch. Delivery times may vary depending on the courier service and the recipient's location. Subject to stock availability.

Please note that we do not offer shipping to PO Box addresses.

Additional information

Weight 0.15 kg