Environmental Measurements

What Environmental Measurements does

Environmental Measurements Limited (EML) is a UK-based, privately held hydro-meteorological instrumentation specialist founded in 1985 in North Shields. The company designs, manufactures and supplies precision instruments centred on its proprietary aerodynamic tipping-bucket rain gauges - including the ARG314, SBS range (Standard, Lite, Siphon), Kalyx-RG and UPG1000 Universal Precipitation Gauge - that reduce wind-induced undercatch through a peer-reviewed CFD-validated airflow profile. Around this core EML assembles complementary sensors (Gill and WindSonic ultrasonic anemometers, Vaisala temperature/humidity probes, Apogee pyranometers, WLS hydrostatic water level transmitters), X-band weather radars integrated from Italian partner Eldes (WR-10X, WR-25XP), and supporting accessories such as the Limpet datalogger, Rain Gauge Field Verification Kit and Tri-Pedestal mounts.

EML monetises through direct enterprise sales of instruments, bespoke multi-vendor hydro-met system design and build, and recurring services including site surveys, installation, commissioning and a UK-only dynamic laboratory calibration service accredited to EN17277:2019. The customer base spans national meteorological and hydrological services (UK Met Office framework agreement, INUMET Uruguay), industrial and infrastructure sites (Sellafield Nuclear Facility, Hong Kong Airport Authority), academic and research institutions (Newcastle University, University of Stirling, University of Genoa / WMO Lead Centre on Precipitation Intensity), local authorities (Gateshead Council Project Groundwater Northumbria), and a long-tail hobbyist segment served by the lower-cost Kalyx range. Go-to-market is consultative direct sales augmented by channel partnerships for non-rain-gauge products and active participation in industry exhibitions (Meteorological Technology World Expo, Flood Expo, EGU, Hydromet Africa). Pricing is quote-based; the firm is founder/director-owned, holds BS EN ISO 9001:2015, and has operated without external institutional capital across its 40-year history.

Name

Environmental Measurements

Legal name

Environmental Measurements Limited

Website

https://emltd.net

Company type

Private

Founded year

1985

Operating status

Operating

Headcount range

11–50 employees

Short description

Environmental Measurements Limited (EML) is a UK-based specialist that designs, manufactures and supplies proprietary aerodynamic rain gauges and complementary hydro-meteorological sensors, serving national weather services, industrial operators, research institutions and local authorities worldwide.

Ownership category

akta.pro rank

Product category

Hydro-Meteorological Instrumentation

NAICS

Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables (334513)

SIC

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

akta.pro industry

PRIMARYHLAGAIAL

Metrology, Calibration & Testing Equipment (Balances, pH/DO, Standards)

Healthcare & Life Sciences/Life Science Tools & Services (CRO/CDMO/Lab Services)/Laboratory Equipment, Instruments & Consumables

SECONDARYHDAHALAD

Environmental Sensors (Temperature/Humidity/Gas/Air Quality)

Hardware, Technology & Telecom/Semiconductors & Electronic Components/Sensors, MEMS & Optoelectronics

Keywords

• Rain gauge instrumentation
• Hydro-meteorological monitoring
• Weather station sensors
• Meteorological measurement systems
• Hydrology monitoring equipment

Headquarters

HQ city

North Shields

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Hydro-Meteorological Hardware Products: EML designs, manufactures, and supplies a comprehensive range of hydro-meteorological instruments including aerodynamic rain gauges (ARG314, SBS Range, Kalyx-RG), wind sensors, temperature and humidity probes, weather radars, solar radiation sensors, and water level sensors. Revenue is generated through one-time product sales of physical instruments.
2. Bespoke Hydro-Met System Design and Build: EML designs and builds bespoke hydro-meteorological monitoring systems combining their own products with hand-picked supplier products to meet specific customer requirements. Systems include rain monitoring systems, compact weather stations, and thunderstorm/lightning detection systems.
3. Site Surveys, Installation and Commissioning: Qualified engineering team provides site surveys, installation and commissioning services for meteorological monitoring equipment. Removes hassle from customers' monitoring projects.
4. Calibration Services: EML offers laboratory dynamic calibration services for rain gauges, including Class A certification. As far as known, this is the only such system in the UK. Family calibrations published as free technical notes, with bespoke individual gauge-specific calibration available as a premium paid service.

Pricing tiers

Go-to-market motion2 records

Distribution channels4 records

Marketing channels5 records

Core offering

Environmental Measurements Limited (EML) designs, manufactures, and supplies precision hydro-meteorological instrumentation, with a core range of proprietary aerodynamic tipping bucket rain gauges (ARG314, SBS, Kalyx-RG, UPG1000) complemented by wind sensors, temperature and humidity probes, X-band weather radars, solar radiation and water level sensors, compact weather stations, and data loggers. The company also delivers bespoke system design, site surveys, installation, commissioning, and laboratory dynamic calibration services to national meteorological services, government agencies, research institutions, and industrial operators worldwide.

Product overview

Environmental Measurements Limited (EML) is a hydro-meteorological instrumentation specialist offering a comprehensive portfolio of precision rain gauges, weather sensors, and monitoring systems. The product line centres on EML's proprietary aerodynamic rain gauges including the ARG314, SBS Range (Standard, Lite, and Siphon variants), Kalyx-RG, and UPG1000 Universal Precipitation Gauge. Supporting accessories include the Limpet Logger datalogger, Field Verification Kit, Bird Spike Kit, and Tri-Pedestal mounting. EML extends its portfolio through OEM partnerships: Gill Instruments wind sensors (WSD1, WSU1, WindSonic, WMT700, WindObserver, WindMaster), Vaisala instruments (WXT530, RH1), Rotronic probes (RH2), and Eldes radar systems (WR-10X, WR-25XP). Additional offerings include temperature/humidity shields (SS Range), solar radiation sensors (Apogee Pyranometers, NR Lite2), water level sensors (WLS), and compact weather stations (MaxiMet, MetConnect). Services encompass bespoke Hydro-Met system design, installation, and commissioning. All products share a focus on precision measurement for applications ranging from flood warning and hydrology to agriculture, building management, and environmental research.

Differentiator

Problem solved

Functional benefit

Products and services

• ARG314 Rain Gauge Aerodynamic tipping bucket rain gauge manufactured from UV-stabilised injection-moulded plastic with a refined aerodynamic profile derived from the SBS aluminium design. Provides WMO-compliant rainfall measurement with multiple resolution options (0.1mm, 0.2mm, 0.5mm metric; 0.005in, 0.01in, 0.02in imperial) and a dual reed switch option. Designed for professional meteorological and hydrological monitoring applications.
• SBS Range Rain Gauge Precision-engineered aluminium tipping bucket precipitation sensor with an optimum aerodynamic shape developed through 10 years of field research. WMO compliant, self-emptying, dual replaceable reed switches as standard, 0.1mm and 0.2mm resolution, chosen by the UK Met Office and SEPA. For professional meteorological and environmental monitoring networks.
• SBS Siphon Rain Gauge Siphon-controlled tipping bucket rain gauge that mechanically resolves high-intensity rainfall measurement losses. The siphon device replaces the ordinary nozzle and delivers a constant flow rate to the tipping bucket regardless of rainfall intensity, removing the need for software correction. For high-intensity rainfall monitoring.
• Kalyx-RG Rain Gauge Cost-effective aerodynamic tipping bucket rain gauge based on the traditional 5-inch Met Office gauge physical size with EML's aerodynamic profile. Provides scientific-standard rain data at reduced cost, well regarded in the agricultural industry in the UK, Europe, and worldwide. For budget-conscious projects, agriculture, and hobbyist use.
• UPG1000 Universal Precipitation Gauge Aerodynamic tipping bucket rain gauge with integrated heating elements for universal precipitation measurement including rain, snow, and hail. Features a deep aerodynamically-shaped funnel that minimises outsplash, with 0.1mm / 0.005in resolution. For year-round precipitation monitoring in cold climates.
• Kalyx Rainfall Monitoring System (KRMS) Combined rain gauge and datalogger system integrating the Kalyx rain gauge with the Limpet logger. Described as the smallest and most accurate rain gauge/datalogger combination available, with four units costing the same as one professional-grade gauge, enabling greater spatial coverage for urban areas and agriculture.
• WR-10X X-Band Weather Radar Single polarisation non-Doppler mini weather radar distributed in the UK and Ireland by EML as integrator for Eldes products. Maximum range of 100 km, available as fixed or mobile installation, networkable via the Miniradar Cluster. Provides real-time precipitation, rain/hail/snow, and severe weather monitoring.
• WR-25XP X-Band Weather Radar Dual polarisation Doppler X-band weather radar distributed by EML as Eldes integrator, with high-accuracy real-time wind estimation up to 120 km. Suited to advanced hydro-meteorological applications including precipitation classification, hydrology, urban flood management, and gap-filling in C-band radar networks.
• Limpet Data Logger Compact, low-power rain logger designed to fit inside EML rain gauges (Kalyx-RG, ARG314, SBS). Supports event-mode and time-mode recording, USB configuration, and is supplied with free EML Limpet GUI software. Low-cost alternative to traditional data acquisition solutions.
• WindSonic Ultrasonic Wind Sensor Low-cost solid-state 2-axis ultrasonic wind sensor with no moving parts, distributed by EML. Available in three versions (standard, Metal, 75 m/s), maintenance-free, NMEA output, corrosion-free construction. For general meteorological and industrial wind monitoring.
• WMT700 Series Ultrasonic Wind Sensor Professional-grade ultrasonic anemometer distributed by EML as a Vaisala product, meeting WMO and ICAO requirements. Measurement range up to 90 m/s, 250W heating, IP66/IP67 rated, maintenance-free, can be mounted upside down. For aviation, marine, and severe-environment applications.
• WindObserver Ultrasonic Wind Sensor Robust stainless-steel 2-axis ultrasonic anemometer (Gill Instruments) distributed by EML. IP66 rated, optional high-temperature de-icing system rated to -55 °C, sonic temperature output, Lloyd's Register type approval. For extreme environments including arctic and offshore.
• WindMaster 3D Ultrasonic Wind Sensor Precision 3D sonic anemometer (Gill Instruments) distributed by EML, providing U, V, W vector outputs at 20 Hz (32 Hz option). Aluminium/carbon fibre or stainless-steel construction, 0-50 m/s or 0-65 m/s range, speed of sound and sonic temperature outputs. For research-grade turbulence and flux measurements.
• RH1 Temperature and Humidity Probe Economical temperature and humidity probe distributed by EML using a Vaisala HMP-60 with a machined acetal body. INTERCAP technology, field-replaceable probe eliminating downtime and the need for re-calibration. For professional weather stations and building management.
• RH2 Temperature and Humidity Probe High-precision digital humidity-temperature probe distributed by EML using Rotronic AirChip 3000 technology. Class A accuracy, dew point measurement, interchangeable field-replaceable probe, analogue or digital outputs. For demanding meteorological and research applications.
• MaxiMet Series Compact Weather Station Advanced compact weather station (Gill Instruments) distributed by EML, measuring meteorological parameters to international standards. Configurations include wind, precipitation, solar radiation, temperature, humidity, pressure, GPS, and compass; the GMX501 includes all sensors, while the GMX550 includes a tipping bucket rain gauge connector.
• MetConnect Series Compact Weather Station Robust stainless-steel compact weather station (Gill Instruments) distributed by EML with high-quality sensors. Configurable output, connector inputs for additional sensors, minimal maintenance. For weather observation, ports, coastal buoys, solar energy, and agriculture.
• WXT530 Series Compact Weather Sensor Vaisala compact weather sensor distributed by EML providing six parameters: air pressure, temperature, humidity, rainfall, wind speed, and direction in various combinations. Acts as a flexible integrated building block for weather applications.
• Apogee Pyranometers Solar radiation sensors distributed by EML in silicon-cell and thermopile models. Low power, easy interfacing, cost-effective solution for agricultural, ecological, and hydrological weather networks, and photovoltaic system optimisation.
• NR Lite2 Net Radiation Sensor Routine net radiation measurement sensor with a unique double-sided detector design. Black conical absorbers with anti-stick coating, virtually maintenance-free, with a vertical stick that prevents birds from affecting output. For agricultural and ecological monitoring.
• WLS Water Level Sensors Hydrostatic submersible transmitter designed for permanent submersion up to 100 m water depth. Different models available for various environmental requirements, including corrosive media applications. For hydrology and water level monitoring.
• Rain Gauge Field Verification Kit (RFVK) Mechanical field calibration verification device that simulates five different flow rates to check rain gauge calibration at different intensities. Compatible with most rain gauge orifice areas and measuring principles. For field verification of installed gauges.
• Bespoke Hydro-Meteorological System Design and Build Bespoke design and build service combining EML's own products with hand-picked supplier products (Gill, Vaisala, Eldes, Apogee, Rotronic) to meet specific customer requirements. Systems include rain monitoring networks, compact weather stations, and thunderstorm/lightning detection systems, with full project management. For national meteorological services, research institutions, and industrial operators.
• Site Survey, Installation and Commissioning Services Qualified engineering team provides site surveys, installation, and commissioning services for meteorological monitoring equipment, from project beginning to end. Removes operational complexity from customers' monitoring projects. For weather, hydrology, urban weather, and industrial clients.
• Laboratory Dynamic Rain Gauge Calibration Service Laboratory dynamic calibration service for rain gauges, including Class A certification per European Standard EN17277:2019, believed to be the only such system in the UK. Family calibrations are published as free technical notes, with bespoke individual gauge-specific calibration available as a premium paid service. For meteorological services and gauge operators.

Quantifiable outcome

• Wind-induced undercatch reduced to >23% at Scottish upland sites through aerodynamic gauge design
• +2 more outcomes

Named customers11 records

Segments5 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration1 record

Feature9 records

Partnerships

Nine partnerships are on record, tiered core and minor.

• Eldes (Florence, Italy)coreTechnology or Integration · 1 January 2023EML are integrators and distributors for Eldes X-band weather radar products (WR-10X, WR-25XP) in the UK and Ireland. EML supplies, installs, and maintains Eldes radars, including recent installations at University of Stirling and upgrades at Newcastle University.
• Gateshead CouncilminorImplementation/ SI/ Consulting Partner · 1 January 2023EML partnered with Gateshead Council to supply and install SBS rain gauges for 'Project Groundwater Northumbria' (PGN) at multiple sites across the local area. PGN is funded by DEFRA's £200 million Flood and Coastal Innovation Programmes (FCIP), managed by the Environment Agency. First rain gauge installed at a local school.
• PTC InternationalminorChannel Partner/ Reseller/ Distributor · 1 January 2019PTC International integrates EML rain gauges into Air Quality Monitoring Stations for Hong Kong Airport Authority. EML rain gauges combined with Gill WindObserver ultrasonic wind sensors. PTC has been supplying, maintaining, and operating these stations for over 10 years.
• NettracoreTechnology or Integration · 1 November 2018EML partnered with Uruguayan technology company Nettra to deliver a network of 60 telemetered autonomous rainfall stations to INUMET, the Uruguayan Meteorological Institute. Each station combines an EML SBS rain gauge with a Nettra RTU+ telemetry unit. Data is transmitted wirelessly via cellular network to a Fiware platform using VPN connection. The partnership was formed to address evolving needs of the global Hydro-Met industry in the context of changing climate with more extreme rainfall events.
• Nanjing Hydraulic Research Institute and Newcastle UniversityminorStrategic or Co-development Partner · 1 April 2018EML became industrial partners in a Newton Fund flood management research project in China. EML works with Nanjing Hydraulic Research Institute and Newcastle University to help improve flood forecasting and flood warnings in Nanjing. The Virtual Collaboratory (VC) replicates an end-to-end real-time flood forecasting, warning, and decision-making system. Project duration April 2018 to March 2020.
• Gill InstrumentsminorGTM or Marketing Partner · 1 January 2018EML shares exhibition space with Gill Instruments at the European Geosciences Union (EGU) General Assembly in Vienna, April 2018 (Booth #45). Gill Instruments is a manufacturer of ultrasonic wind sensors. EML's wind products page lists Gill instruments including WindSonic, WindObserver, WindMaster, and MetConnect/MaxiMet weather stations.
• LARS CommunicationsminorImplementation/ SI/ Consulting Partner · 1 January 2017LARS Communications were a critical partner in carrying out the 48m climbing work for the Sellafield weather station installation. EML managed the overall design, installation, and commissioning.
• Kuwait Institute for Scientific ResearchminorStrategic or Co-development Partner · 1 January 2016EML developed new capacity for high-resolution monitoring of domestic water use in Kuwait, on behalf of the Ministry of Electricity and Water and Renewable Energy, Kuwait. The project identified microcomponents of domestic water use in large Kuwaiti households (15-20 occupants) using ultrasonic clamp-on water meters and innovative sound monitoring.
• University of Genoa / WMO Lead Centre on Precipitation Intensity (LC-PrIn)coreStrategic or Co-development Partner · 1 January 2005Ongoing research partnership with the Department of Civil, Chemical and Environmental Engineering (DICCA) and WMO Lead Centre on Precipitation Intensity at the University of Genoa, Italy. EML's rain gauges are tested at the Vigna di Valle precipitation research site against pit reference measurements. The collaboration has produced two peer-reviewed papers published in Water Resources Research (CFD paper and Field Study paper). EML also collaborated with LC-PrIn to produce the UK's only laboratory dynamic calibration system for rain gauge classification.

Scale indicators6 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Gill Instruments: UK-based specialist manufacturer of ultrasonic wind sensors (WindSonic, WindObserver, WindMaster). Both a partner (EML resells Gill products) and a direct competitor to EML in the wind sensor category. Closely comparable in target customers (UK Met Office, airports, industrial sites) and geographic focus.
• OTT Hydromet: German-headquartered global manufacturer of hydrometeorological instrumentation including rain gauges, water level sensors, and weather stations. Closely comparable to EML in product category (tipping bucket rain gauges, hydro-met systems) and customer base (national met services, environmental agencies). Largest direct competitor in the rain gauge category worldwide.
• Davis Instruments: US-based maker of weather stations and rain gauges sold across the hobbyist, agricultural, and prosumer markets. Comparable to EML's Kalyx-RG and KRMS products targeting affordable, accurate rainfall monitoring for non-professional end users including weather enthusiasts and agriculture.
• R.M. Young Company: US manufacturer of meteorological instruments including wind sensors and temperature/humidity probes. Comparable to EML in the wind and environmental sensor categories with overlapping professional meteorological customer bases (research institutions, government agencies, industrial sites).
• Campbell Scientific: US-based manufacturer of data loggers and integrated weather stations widely used in research and operational meteorology. EML's systems incorporate Campbell Scientific loggers. Comparable as a competitor in automatic weather stations and as a complementary supplier in EML's bespoke system builds.
• Lufft (a brand of OTT Hydromet): German manufacturer of professional meteorological and road weather sensors including ultrasonic anemometers, compact weather stations, and precipitation sensors. Direct competitor to EML in ultrasonic wind sensors and weather stations, particularly across European government and airport customers.

Broad incumbents

• Vaisala: Finnish global leader in weather, environmental, and industrial measurements with a portfolio spanning rain gauges, wind sensors, weather radars, and road weather systems. EML both competes with and resells Vaisala products (WMT700, WXT530, RH1). Vaisala represents the dominant incumbent against which EML positions its differentiated precision rain gauges.

Emerging players

• Apogee Instruments: US manufacturer of environmental sensors including pyranometers, quantum sensors, and net radiometers used in agricultural and ecological monitoring. EML resells Apogee pyranometers and NR Lite2 products. Comparable as a niche player in radiation measurement with overlap in agricultural and environmental research customer segments.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/EnvMeasLtd
• LinkedInlinkedin.com/company/environmental-measurements-limited

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

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 Environmental Measurements