IOTRON™ Custom built-to-order
Smart Digital pH & ORP Sensors
for Intellient 3TX-HiQ-pH Digital Transmitters:

ZEUS™ Off-the-Shelf
Ship from Stock
Analog & Digital pH Sensor Series:

  • Simplify commissioning & maintenance with smart digital plug and play sensors & intelligent digital transmitters
  • Robust NEMA 6P rated snap connector makes exchange of sensors quick and easy for any field installation
  • Calibration values are automatically loaded when sensor is connected without any user action required
  • Complete transmitter configuration can downloaded or uploaded to smart digital sensor for cloning of transmitter setup, backup and/or reverting
  • Tracks initial installation & last date in use, total service time and has complete sensor information stored to facilitate best practice management of sensor inventory, usage and procurement

  • Rugged Thick 1"-1.25" MNPT pH sensors with RADEL sensor body housing for inline, immersion & submersible installations
  • For slurry/viscous abrasives, sulfides, high-temperature, dissolved chlorine & ammonia gas, and compatible with most organic solvents
  • Recommended for use in severe service use and tough process installations.
  • Continuous use up to 200 psig inline pressure & 150 degrees Celsius
  • Available in analog configurations without preamplifiers and with integral conventional or differential preamplifiers
  • Available in smart digital configuration for use with 3TX-HiQ-pH intelligent transmitters

Competitive Advantages of Design & Technology for
IOTRON™ & ZEUS™ Industrial pH & ORP Sensors


IOTRON™ Custom built-to-order pH Sensors & ORP Sensors
Available in both Analog & Smart Digital Configurations



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  • Rugged line of 3/4"-3/4" & 3/4"-1" MNPT pH & ORP sensors for inline, immersion and fully submersible installation types in a wide range of plastic body housing materials
  • Sensors are built to order and customized for specific application use
  • Options include slurry/viscous, sulfide, high-temperature, dissolved chlorine and ammonia gas, and organic solvent resistant for severe service use.
  • Support for up to 150 psig pressure and 150 degrees Celsius conditions
  • Twist lock configuration offers convenient insertion and removal from process with quick disconnect bayonet style installation
  • Twist lock pH & ORP sensors are available with all of the same features and options as immersion sensor series for support of the same severe service applications
  • Twist lock receptacle available in KYNAR (PVDF) as shown above & PEEK (not shown above) materials of construction for compatibility with most any possible installation. Sealing "O"-rings come standard in Viton-75 with CV75 Simriz 485or Kalrez 4079 as optional upgrades.



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  • Rugged modular HOT-TAP valve retractable design allows for safe use at high pressures and temperatures with an insertion depth up to 41 inches.
  • Available in 1.5 inch and 2.0 inch full port assembly versions. Robust blow-out protection standard and watertight insertion tube assembly.
  • 316SS standard with alternate materials of construction upon request. Viton or Kalrez "O"-rings for sealing.
  • Ideal for plants with installations that cannot be shut down for sensor insertion or removal and process systems where a slip-stream bypass is not possible.
  • Sanitary pH & ORP sensors with solid-state reference technology are ideal for aggressive food and beverage processes requiring chemical clean-in-place (CIP) support.
  • Solid state reference is resistant to dehydration, chemicals, gases and other process conditions.
  • Thick wall glass is resistant to cracking, even under high temperature and pressure conditions.
  • Available with special "EXTREME" reference system to support prolonged exposure to dry conditions and for intermittent operation.
  • Accurate pH glass is well suited for measurements requiring a high degree of precision.

Advanced Sensor Technologies, Inc.
603 North Poplar Street, Orange, California 92868-1011 USA
Tel: + (1) 714-978-2837  Toll-Free: + (1) 888-969-2784 Fax: + (1) 714-978-6339 Website:
Manufacturing Long-Lasting Industrial pH Sensors, ORP sensors, Ion Selective (ISE) Sensors, Conductivity Sensors and Dissolved Oxygen (DO) Sensors for Difficult Inline Process Control Measurement and Monitoring Applications
Offering industry leading product developments and research services for OEM manufacturers and resellers requiring pH, ORP, Ion Selective (ISE), Conductivity and Dissolved Oxygen (DO) Measurements for
Laboratory, Medical In-Vitro and In-Vivo Applications and Industrial Inline, Immersion, Submersible, Sanitary and HOT-TAP Valve Retractable Measurements