What Alpha Moisture Systems does

Alpha Moisture Systems Limited (AMS), headquartered in Horsforth, Leeds, United Kingdom, designs and manufactures precision dewpoint hygrometers and trace moisture measurement instruments for industrial process operators. Founded in 1993, the company serves customers in oil & gas, petrochemical, pharmaceutical, industrial gas, aerospace, and power generation, with a customer roster that includes Shell, BP, ExxonMobil, Pfizer, AstraZeneca, Linde, Air Liquide, NASA, and SpaceX. AMS is a subsidiary of Halma plc, a FTSE-listed safety and environmental technology group.

The company's product portfolio spans portable hygrometers, online dewpoint transmitters, panel-mounted displays, chilled mirror reference instruments, and custom-engineered sample conditioning systems. Core proprietary technology centers on ultra-high capacitance aluminium oxide sensing, complemented by chilled mirror and polymer sensing methods. All instruments carry hazardous-area certifications (IECEx, ATEX, cULus, CE, UKCA) and are supplied with NPL-traceable calibration, addressing the rigorous compliance and traceability requirements of regulated process industries.

AMS operates a project-driven, quote-based sales model targeting engineering procurement and construction (EPC) contractors, plant operators, and laboratory end-users. Revenue is generated through direct enterprise sales supplemented by a global distributor network, with the company actively recruiting new channel partners to extend geographic reach. The combination of specialized sensor IP, regulatory certifications, and integration into customer process lines creates a defensible position in a niche instrumentation category, supported by the capital backing and governance of its Halma plc parent.

Name

Alpha Moisture Systems

Legal name

Alpha Moisture Systems Limited

Website

https://dew-point.com

Company type

Private

Founded year

1993

Operating status

Operating

Headcount range

1–10 employees

Ownership category

akta.pro rank

Product category

Industrial Process Instrumentation

NAICS

Analytical Laboratory Instrument Manufacturing (334516), Automatic Environmental Control Manufacturing for Residential, Commercial, and Appliance Use (334512)

SIC

Laboratory Analytical Instruments (3826), Refrigeration & Service Industry Machinery (3580)

akta.pro primary industry

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

akta.pro secondary industries

Environmental Sensors (Temperature/Humidity/Gas/Air Quality) (HDAHALAD), Refrigeration Components & Controls (Compressors, Valves, Sensors) (IMAHAKAH)

Keywords

• Dewpoint measurement instruments
• Trace moisture analyzers
• Process gas hygrometers
• Aluminum oxide moisture sensors
• Industrial humidity monitoring

Headquarters

HQ city

Leeds (Horsforth)

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Precision instrumentation hardware sales: Sale of trace moisture measurement instruments including portable dewpoint hygrometers, online/transmitter systems, chilled mirror hygrometers, dewpoint sensors, and sample systems. Products range from portable spot-check meters to continuous online monitoring systems.
2. Calibration and service: Comprehensive dewpoint calibration services traceable to National and International Humidity Standards, bespoke systems design, and technical support services.
3. Custom sample systems: Design and engineering of customized trace moisture measurement solutions tailored to specific application requirements in hazardous and non-hazardous environments.

Go-to-market motion2 records

Distribution channels2 records

Marketing channels4 records

Core offering

Alpha Moisture Systems designs, manufactures, and supplies precision trace moisture measurement instruments, including portable and intrinsically safe dewpoint hygrometers, online dewpoint transmitters, panel-mount displays, dewpoint sensors, chilled mirror reference hygrometers, and a range of conditioning sample systems for process gas and compressed air applications. The company complements its hardware portfolio with dewpoint calibration services traceable to National and International Humidity Standards, custom sample system engineering, hazardous-area solutions, and applications engineering support.

Product overview

Alpha Moisture Systems is a specialized manufacturer of precision trace moisture measurement instruments with over 30 years of industry experience. The product portfolio consists of three main categories: (1) Portable instruments including the SADPmini2, SADPmini2-Ex, SADPmini2-L, DSP-FCI, and DSP-Ex handheld dewpoint hygrometers for spot-check measurements in field and hazardous environments; (2) Online/fixed systems comprising AMT, AMT-Ex, and PDT dewpoint transmitters paired with DS4000, DS1500, DS1200, and DIS030 displays for continuous monitoring; (3) Chilled mirror instruments including the CMH-RPC (benchtop) and CMH-P2 (portable) for primary-standard laboratory reference measurements achieving ±0.2°C accuracy. Supporting infrastructure includes a comprehensive range of sample systems (AWS-6020, PSS, SS-B, SS-TEG, SS-1/SS-2, SS-3/SS-4, SS-NGH) for conditioning process gases before measurement, plus accessories (Bluetooth printer, vacuum pump, sensor holders). All products utilize aluminum oxide or polymer sensing technologies with calibration traceable to National Physical Laboratory (NPL) standards. The company also provides calibration services, custom sample system engineering, and hazardous area solutions as part of its service offering.

Differentiator

Problem solved

Functional benefit

Products and services

• SADPmini2-Ex Portable Dewpoint Hygrometer Intrinsically safe portable dewpoint hygrometer certified to IECEx, ATEX, and cULus standards, featuring ultra-high capacitance aluminum oxide sensing technology, 300,000-reading data logging, Bluetooth connectivity, and full-color LCD display for trace moisture measurement in hazardous environments.
• SADPmini2-L Handheld Dewpoint Meter Handheld dewpoint meter for precise trace moisture measurement in industrial gases and compressed air, featuring data logging capability and Bluetooth connectivity to a portable printer for non-hazardous spot-check applications.
• SADPmini2 Handheld Dewpoint Hygrometer Handheld dewpoint hygrometer for rapid spot checks of trace moisture in industrial gases and compressed air, with rechargeable lithium-ion battery providing over 150 hours of operation and Bluetooth connectivity.
• DSP-FCI Portable Dewpoint Hygrometer Self-contained portable dewpoint hygrometer with ±2°C dewpoint accuracy, featuring an integral sample flow control valve for high-pressure samples, built-in flow indicator, and over 250 hours of battery operation from six C-type batteries.
• DSP-Ex Portable Dewpoint Hygrometer Intrinsically safe portable hygrometer certified to ATEX standards (ATEX Ex ia IIC T3/T4 Ga) for precise trace moisture measurements in hazardous areas, featuring desiccant dry-down technology for rapid response and ultra-high capacitance aluminum oxide sensing.
• DS4000 Display Advanced panel mount single-channel display with ±2°C dewpoint accuracy, integrating with AMT, AMT-Ex, and PDT dewpoint transmitters for continuous trace moisture measurement in process gases and dry compressed air, with RS485 connectivity for data interrogation.
• DS1200 Display Entry-level panel mount single-channel display for continuous accurate trace moisture measurement, factory preconfigured with dewpoint display options in °C, °F, ppm(V), g/m³ or lb/MMSCF.
• DS1500 Display Sophisticated panel mount display with RS485 and MODBUS RTU capabilities for remote interrogation, featuring six-digit red LED display and four programmable alarm relays for continuous trace moisture monitoring.
• DIS030 Dewpoint Display Compact self-contained single-channel 4-digit LED display weighing 125g, designed for seamless integration with PDT dewpoint transmitter via secure M12 connector, powered by 4-20 mA loop.
• Model 6020 Dewpoint Hygrometer and Intrinsically Safe Sensor Sophisticated single-channel panel mount display integrated with an intrinsically safe dewpoint sensor, featuring AutoCal function, RS485 connectivity, and dewpoint ranges from -110°C to +20°C dewpoint.
• Dewpoint Sensor Aluminum oxide technology dewpoint sensor with wide measurement range from -110°C to +20°C dewpoint (0.001 ppm to 2% by volume), certified intrinsically safe to ATEX and IECEx standards for hazardous environments.
• AMT Dewpoint Transmitter Compact 2-wire 4-20 mA loop-powered transmitter for continuous trace moisture measurement with ultra-high capacitance aluminum oxide sensing technology, now available with Modbus RTU over RS485 for PLC/SCADA integration.
• AMT-Ex Intrinsically Safe Dewpoint Transmitter Intrinsically safe 3-wire 4-20 mA dewpoint transmitter certified to IECEx and ATEX standards for continuous trace moisture measurement in hazardous areas, with rugged stainless steel construction rated to IP66/NEMA 4X.
• PDT Dewpoint Transmitter Economical 2-wire 4-20 mA loop-powered transmitter with bulk polymer sensing element for higher dewpoint measurement applications ranging from -60°C to +50°C dewpoint, rated to 50 bar operating pressure.
• CMH-P2 Portable Chilled Mirror Hygrometer Portable chilled mirror hygrometer with thermo-electric chiller offering laboratory-standard accuracy of ±0.2°C dewpoint, suitable for calibration engineers and troubleshooting, with drift-free sensor and minimal maintenance.
• CMH-RPC Precision Chilled Mirror Dewpoint Hygrometer Benchtop precision chilled mirror hygrometer with 3-stage cooling for measurements up to -95°C frost/dew point (37 ppb(V)), serving as primary standard for laboratory, scientific, and reference applications.
• AWS-6020 Sample System Advanced sample system for trace moisture measurement in gas and compressed air, enclosed in an IP66-rated weatherproof cabinet integrating pressure regulation, filtration, flow control, three-port sample selection valve, sensor holder, dewpoint sensor and dewpoint meter.
• PSS Portable Sample System Portable dewpoint sampling system for SADPmini2 series hygrometers, designed to precondition pressurized gas samples up to 200 barg with integrated pressure regulator and flow indicator, safe for hazardous area use with SADPmini2-Ex.
• SS-B Dewpoint Sample System Compact cost-effective sample system for regulating sample line pressure up to 210 barg, featuring integrated pressure regulator, transmitter holder, and flow meter for controlled trace moisture measurement.

Quantifiable outcome

• Accuracy of ±2°C dewpoint traceable to National and International Humidity Standards
• +2 more outcomes

Named customers35 records

Segments5 records

Ideal customer profiles5 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration6 records

Feature5 records

Scale indicators2 records

Recent moves5 records

Expansion highlights5 records

Direct peers

• Vaisala: Vaisala is the global market leader in humidity and dewpoint measurement, offering industrial transmitters, portable hygrometers, and chilled mirror instruments that directly overlap Alpha Moisture Systems' entire product portfolio across oil & gas, pharma, and industrial gas customers.
• Panametrics (Baker Hughes): Panametrics, part of Baker Hughes, supplies moisture and humidity analyzers (including its MMS series) for natural gas, petrochemical, and industrial gas applications — directly competing with Alpha's online transmitter and sample system portfolio in oil & gas and petrochemical segments.
• Shaw Moisture Meters (Ametek): Shaw Moisture Meters is a direct competitor specializing in aluminum oxide dewpoint sensors and portable hygrometers for trace moisture in process gases, compressed air, and natural gas — substantially overlapping Alpha's SADPmini and AMT product lines.
• Michell Instruments (Ametek): Michell Instruments is one of the most direct competitors in trace moisture measurement, offering aluminum oxide and chilled mirror dewpoint hygrometers, sample systems, and calibration services to the same oil & gas, pharmaceutical, and industrial gas end markets. It is now part of Ametek's Process Instruments division.
• Rotronic (Process Sensing Technologies): Rotronic, now part of Process Sensing Technologies (PST), specializes in humidity measurement instruments, data loggers, and probes for industrial and pharmaceutical applications, providing overlapping portable and online measurement products.

Broad incumbents

• GE Measurement & Control (Baker Hughes): GE's legacy moisture and gas analysis products, now under Baker Hughes, compete in trace moisture measurement for natural gas, petrochemical, and power generation — overlapping with Alpha's energy industry applications through larger-scale instrumentation deals.
• Endress+Hauser: Endress+Hauser is a broad process instrumentation incumbent whose product portfolio includes dewpoint and humidity transmitters for process industries. While not niche-focused like Alpha, it competes for the same process analytics budgets at oil & gas, pharma, and chemical customers globally.

Emerging players

• Elpro (Berlinger Group): Elpro (Berlinger) offers humidity and temperature monitoring solutions for pharmaceutical, life science, and cold-chain applications, partially overlapping Alpha's pharmaceutical and healthcare customer base around temperature and moisture data logging.
• COSA Xentaur: COSA Xentaur manufactures dewpoint meters and humidity sensors for industrial gas, petrochemical, and semiconductor applications, providing partial overlap with Alpha's portable and online hygrometer offerings in similar end markets.
• Thunder Scientific Corporation: Thunder Scientific is a smaller specialist in humidity measurement and calibration, including two-pressure humidity generators and chilled mirror reference instruments that compete with Alpha's CMH-RPC and CMH-P2 primary-standard products in laboratory and calibration niches.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/alpha-moisture-systems

Compliance6 records

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 Alpha Moisture Systems