Advanced Sensor Technologies

What Advanced Sensor Technologies does

Advanced Sensor Technologies, Inc. (ASTI), founded in 1984 and headquartered at 603 North Poplar Street, Orange, California, is a privately held manufacturer of custom built-to-order solid-state electrochemical sensors for industrial process measurement. The company produces pH, ORP, ion selective (ISE), conductivity, and dissolved oxygen sensors under the IOTRON™ and ZEUS™ lines, plus the HiQDT Smart Digital MODBUS RTU measurement platform, ASTI-brand transmitters and touchscreen controllers, Rosemount-compatible instrumentation, and HOT-TAP valve retractable assemblies. Its core technical differentiation is a proprietary non-porous reference junction system that eliminates O-rings, washers, and elastomers — the principal failure mode in competitor designs — via press-fit and multi-stage adhesive sealing for use in abrasive slurries, HF etching baths, H2S-laden streams, saturated brines, and temperatures up to 205°C at 500 psig.

ASTI serves enterprise and municipal customers across chemical processing, mining and minerals, pharmaceutical and biotech, pulp and paper, food and beverage, and water/wastewater treatment verticals. Customers are acquired and retained through a consultative, direct factory-sales motion anchored by detailed RFQ application forms and factory-engineer technical consultations; the company does not employ distributors or resellers. Sensors are configured to user-defined materials of construction, cell constants, mounting styles (inline, immersion, submersible, twist-lock quick-disconnect, valve retractable, sanitary), and waterproofing seal options, with pricing determined per quote based on application requirements and supplied under multi-year contracts.

Revenue is generated through hardware sales of custom sensors and supporting instrumentation; the company has no disclosed external funding, parent company, or subsidiaries. Operating geographies are disclosed as USA (North America), although distribution scope is described as global via direct factory channels. ASTI has accumulated over 40 years of continuous operation with stable private ownership and no disclosed leadership changes, M&A activity, or restructuring events in the input data.

Name

Advanced Sensor Technologies

Legal name

Advanced Sensor Technologies, Inc.

Website

https://astisensor.com

Company type

Private

Founded year

1984

Operating status

Operating

Headcount range

11–50 employees

Short description

Advanced Sensor Technologies (ASTI) is a privately held, custom-built-to-order manufacturer of solid-state electrochemical sensors — pH, ORP, ISE, conductivity, and dissolved oxygen — serving chemical processing, mining, pharmaceutical, pulp and paper, food and beverage, and wastewater customers through direct factory sales.

Ownership category

akta.pro rank

Product category

Industrial Process Sensors

NAICS

Other Measuring and Controlling Device Manufacturing (334519), Navigational, Measuring, Electromedical, and Control Instruments Manufacturing (33451)

SIC

Industrial Instruments For Measurement, Display, And Control (3823)

akta.pro primary industry

Process Analytical Instrumentation (Gas analyzers, spectroscopy, pH/ORP, conductivity) (IMAGAFAE)

akta.pro secondary industries

Industrial Sensors (Pressure, Temperature, Flow, Level, Proximity, Vibration) (IMAGAFAA), Sensor Fusion, Interface ICs & Modules (AFE/Readout/Packaging/Calibration) (HDAHALAO)

Keywords

• Industrial pH sensors
• ORP sensors
• Ion selective sensors
• Conductivity sensors
• Dissolved oxygen sensors

Headquarters

HQ city

Orange

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Personnel, Operations, Technology or R&D, Marketing or Sales

Revenue model

1. Custom Industrial Sensors: Custom built-to-order solid-state electrochemical sensors including pH, ORP, ISE, Conductivity, and Dissolved Oxygen sensors. Sensors are manufactured to order based on detailed application specifications. Available in both analog and smart digital configurations.
2. Industrial Instrumentation: Transmitters, controllers, and touchscreen measurement platforms for sensor integration. Includes ASTI transmitters and compatibility with Rosemount transmitters. Advanced touchscreen controllers with encrypted secure full graphical remote access, integral datalogging and MODBUS TCP communication.
3. HOT-TAP Valve Retractable Assemblies: 3rd Generation (3GVR) HOT-TAP valve retractable assemblies for insertion and removal of sensors while process is running. Supports pressures up to 100 psig. Available in 1½" and 2" 316 Stainless Steel configurations.
4. Waterproofing and Installation Hardware: Waterproofing seal options (Style A, B, C, IT) for submersible installations. Complete cable isolation options with factory-installed tubing for aggressive slurry and corrosive liquid environments.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

Advanced Sensor Technologies manufactures custom built-to-order solid-state electrochemical sensors for industrial process measurement, including pH, ORP, Ion Selective (ISE), Conductivity (EC), and Dissolved Oxygen (DO) sensors. The company specializes in difficult and severe service applications such as slurries, corrosive media, high temperatures up to 205°C, and pressures up to 500 psig, supplying both analog and smart digital MODBUS-enabled sensor configurations along with mating transmitters, controllers, and installation hardware.

Product overview

Advanced Sensor Technologies is a manufacturer of custom-built-to-order solid-state electrochemical sensors for industrial process measurement applications. The product portfolio centers on the IOTRON™ brand of industrial sensors including pH/ORP sensors, Ion Selective (ISE) sensors, Conductivity (EC) sensors, and Dissolved Oxygen (DO) sensors. The company offers both analog configurations for legacy installations and smart digital configurations under the HiQDT (High Quality Digital Technology) MODBUS RTU platform for modern Industrial Internet of Things (IIoT) deployments. Supporting the sensor line are ASTI-brand transmitters and controllers with touchscreen interfaces, MODBUS TCP communication, and remote access capabilities. The accessories portfolio includes HOT-TAP Valve Retractable Assemblies (3rd Generation) for in-process sensor insertion/removal without shutdown, and waterproofing seal options (A, B, C, IT series) for submersible installations. The flagship ZEUS™ pH sensors represent their most rugged severe-service offering. The architecture follows a sensor-plus-instrumentation model where sensors interface directly via RS-485 MODBUS RTU to PLC/SCADA systems or proprietary ASTI transmitters/controllers.

Differentiator

Problem solved

Functional benefit

Brands

• IOTRON™: Industrial pH/ORP Sensors product line featuring rugged custom built-to-order analog and smart digital sensors for inline, immersion, submersible, twist lock quick-disconnect, valve retractable and sanitary installations.
• ZEUS™
• HiQDT

Products and services

• IOTRON Industrial pH/ORP Sensors Custom built-to-order analog and smart digital industrial pH and ORP sensors with low-profile break-resistant parabolic thick-wall pH glass elements and solid-state non-porous conductive polymer reference systems for industrial process measurement applications.
• IOTRON Industrial Ion Selective (ISE) Sensors Industrial ion selective measurement systems with novel materials of construction and membrane fabrication technologies designed for continuous field ISE measurements in aggressive process conditions and heavy industrial service applications, including the AB 6100 acid-resistant fluoride ion selective sensor for strong acid cleaning and HF etching baths.
• Industrial Conductivity (EC) Sensors Industrial conductivity sensors for use up to 205 degrees Celsius and 500 psig suitable for measurements from 0.055 microSiemens up to 2,000 milliSiemens, with user-selectable materials of construction and cell constants from 0.01 to 20.0.
• Industrial Dissolved Oxygen (DO) Sensors Rugged industrial galvanic dissolved oxygen sensors for inline, immersion, submersible, twist lock quick-disconnect, valve retractable, and sanitary installations, completely insensitive to hydrogen sulfide (H2S) gas with measurement ranges from 0-150 ppm and 0-1,500 percent saturation and automated dry-air calibration.
• ZEUS Industrial pH & ORP Sensors Extremely rugged industrial pH and ORP sensors with severe service construction for the toughest inline, immersion, or submersible installations, available in analog and smart digital configurations and rated for pressures up to 200 psig and temperatures up to 150 degrees Celsius.
• Smart Digital HiQDT MODBUS RTU Platform Smart digital sensor and controller platform with integral RS-485 MODBUS RTU communications allowing direct interface with PLC and SCADA systems for modern Industrial Internet of Things (IIoT) applications, enabling customers to mix and match sensors and controllers from different vendors without brand lock-in.
• HOT-TAP Valve Retractable Assemblies (3rd Generation) 3rd Generation (3GVR) HOT-TAP valve retractable assemblies for 1½" and 2" 316 Stainless Steel installations, enabling insertion and removal of sensors directly into process tanks or pipes while the process is running, with support for pressures up to 100 psig.
• Waterproofing Seals for Submersible Assemblies Waterproofing seal options for submersible sensor installations, including Style A (standard), Style B (aggressive slurry/corrosion resistant with cable isolation), Style C (enhanced sealing), and Style IT (cost-effective with cable isolation).
• ASTI Transmitters and Touchscreen Controllers Full line of ASTI-brand transmitters and advanced touchscreen controllers supporting both analog and smart digital sensors, including encrypted secure full graphical remote access, integral datalogging, and MODBUS TCP communication capabilities.
• Rosemount Compatible Transmitters Rosemount-compatible transmitters (models 1056, 56, 1057, 5081, and 1066) offered for legacy installation support and integration with ASTI sensors.

Named customers6 records

Segments6 records

Ideal customer profiles5 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature7 records

Scale indicators1 record

Recent moves5 records

Expansion highlights4 records

Direct peers

• Mettler Toledo: Global manufacturer of pH, ORP, conductivity, ISE, and dissolved oxygen sensors and transmitters for industrial process and laboratory use. Directly comparable to ASTI across the full electrochemical sensor portfolio, with broader scale and a more standardized catalog approach.
• Hach (Veralto): Specialist in water and process analytics with extensive pH, ORP, conductivity, and dissolved oxygen sensor lines for municipal and industrial water treatment. Highly comparable to ASTI's wastewater and water-treatment use cases, though with a stronger channel and broader standard catalog.
• Endress+Hauser: Leading supplier of industrial process instrumentation including Memosens pH, conductivity, and ISE sensors with worldwide service. Comparable to ASTI in measurement categories, but emphasizes a unified digital platform and global direct-and-channel sales.
• Sensorex: Specialty manufacturer of pH, ORP, conductivity, and dissolved oxygen sensors for industrial and water applications. Most directly comparable small-to-mid peer to ASTI in product focus and customer type, though with a more catalog-based offering.

Broad incumbents

• Honeywell Process Solutions: Provides analytical sensors including pH, conductivity, and DO instrumentation integrated with its Experion and control systems. Comparable to ASTI in measurement scope, but positioned as a broad incumbent with global service and software capabilities.
• Emerson Rosemount Analytical: Rosemount 1056/56/1057/5081/1066 transmitters — explicitly supported by ASTI — are part of Emerson's broader analytical portfolio, which also includes pH, conductivity, and dissolved oxygen sensors. Emerson is a much larger incumbent that competes head-to-head with ASTI in severe-service process measurement while bundling controls, services, and software.
• Xylem Analytics: Parent of brands such as WTW, SI Analytics, and YSI providing pH, conductivity, ISE, and DO sensors for water, environmental, and industrial monitoring. Comparable to ASTI in measurement categories with a stronger municipal/water-treatment focus and broader portfolio.
• ABB Measurement & Analytics: Supplies pH, conductivity, and dissolved oxygen sensors alongside its industrial automation and process control portfolio. Overlaps with ASTI in industrial process measurement, particularly in chemical, mining, and water segments, with global reach and bundled automation offerings.
• Yokogawa Electric: Provides process analytical instrumentation including pH, conductivity, and DO sensors as part of its broader DCS and industrial automation portfolio. Comparable in measurement categories to ASTI but operates as a broad automation incumbent serving large process plants globally.

Emerging players

• Hamilton Company: Manufactures pH, ORP, conductivity, and dissolved oxygen sensors with strong position in biopharmaceutical and laboratory applications and growing industrial presence. Overlaps with ASTI in biopharma and sanitary sensor categories, often as a complementary supplier.

Market position

Strengths4 records

Weaknesses5 records

Competitive moat4 records

Key risks1 record

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/advanced-sensor-technology

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Advanced Sensor Technologies