Delivering precision-engineered solutions for air quality, water quality, and emission monitoring across India and beyond
Get a Free Consultation TodayWhen it comes to protecting our environment and ensuring regulatory compliance, having the right monitoring systems isn't just important—it's absolutely essential. That's where Drexel Electronics & Engg. Products Pvt Ltd steps in as New Delhi's premier Environmental Monitoring Systems manufacturer. Since our establishment in 1991, we've been at the forefront of developing cutting-edge pollution monitoring solutions that help industries, government bodies, and research institutions maintain environmental standards while optimizing their operations.
What sets us apart in the crowded environmental monitoring industry? It's our unwavering commitment to innovation, quality, and customer satisfaction. We don't just manufacture equipment; we engineer complete monitoring ecosystems that provide real-time data, seamless integration with regulatory portals, and actionable insights that drive environmental compliance. Our systems have been successfully deployed in over 1,000 installations across India and international markets, monitoring everything from industrial stack emissions to ambient air quality in urban centers.
Our manufacturing facility in New Delhi produces a comprehensive range of environmental monitoring systems designed to meet both national and international standards. From continuous emission monitoring systems (CEMS) for industrial stacks to sophisticated ambient air quality monitoring stations, each product is engineered with precision and manufactured under strict quality controls. We utilize advanced automation techniques and incorporate the latest sensor technologies to ensure that our clients receive monitoring solutions that are not only accurate but also reliable in the most demanding industrial environments.
As a leading Environmental Monitoring Systems manufacturer, our production philosophy centers on three core principles: precision engineering, rigorous quality control, and continuous innovation. Our state-of-the-art manufacturing facility in New Delhi is equipped with advanced production lines that integrate modern automation with skilled craftsmanship, ensuring each monitoring system meets exacting specifications.
Our manufacturing processes incorporate automation and precision engineering to produce monitoring systems that deliver consistent, accurate results across diverse environmental conditions.
Every system undergoes comprehensive testing including EMC and EMI validation, ensuring robust performance and resistance to electromagnetic interference in industrial settings.
Our products meet global quality and safety standards, including CE Directives for Machinery, Low Voltage, and Electromagnetic Compatibility, making them suitable for international markets.
What truly distinguishes our manufacturing approach is our ability to customize monitoring solutions based on specific client requirements. Whether you need a compact water quality monitoring system for a small treatment plant or a comprehensive multi-parameter ambient air quality monitoring station for a smart city project, our engineering team works closely with clients to develop tailored solutions. This flexibility, combined with our rapid prototyping capabilities, allows us to serve diverse industries including power generation, pharmaceuticals, chemical processing, food production, and municipal water treatment.
Our commitment to quality is reflected in our international certifications. We hold ISO 9001:2015 for Quality Management, ISO 14001:2015 for Environmental Management, and ISO 45001:2018 for Occupational Health and Safety. Additionally, our products are TUV approved and comply with relevant CE Directives. These certifications aren't just badges on our website—they represent our systematic approach to manufacturing excellence, from raw material procurement to final product delivery and after-sales support.
Read MoreOur corporate office in New Delhi serves as the nerve center for all our operations, bringing together strategic planning, customer relationship management, and technical support under one roof. Located in India's capital city, our headquarters provides us with unique advantages in terms of access to government regulatory bodies, research institutions, and a vast network of environmental professionals and industrial clients.
The corporate office houses our experienced team of environmental engineers, project managers, customer support specialists, and business development professionals. This centralized approach ensures seamless coordination between manufacturing, sales, installation, and ongoing support services. When you partner with Drexel Electronics, you're not just getting a product—you're gaining access to a comprehensive support ecosystem that includes pre-sales consultation, system design assistance, installation supervision, operator training, and lifetime technical support.
Our prime location in New Delhi positions us strategically to serve clients across North India while maintaining strong connections with regulatory authorities like the Central Pollution Control Board (CPCB) and State Pollution Control Boards. This proximity enables us to stay current with evolving environmental regulations and ensure our products remain compliant with the latest government guidelines for pollution monitoring.
From our corporate office, we manage projects across India and international markets including Canada, Iraq, and other countries. Our project management team coordinates complex installations, ensuring that monitoring systems are deployed on time, calibrated accurately, and integrated seamlessly with existing infrastructure. We also maintain a dedicated customer service center that provides round-the-clock support for critical monitoring applications, because we understand that environmental monitoring never stops.
Read MoreAs a trusted equipment supplier in the environmental monitoring sector, we provide end-to-end solutions that go far beyond simply delivering hardware. Our equipment supply services encompass system selection consultation, detailed technical specifications, competitive pricing, timely delivery, installation support, and comprehensive training programs for operational staff. This holistic approach ensures that your monitoring infrastructure performs optimally from day one and continues to deliver reliable data for years to come.
We manage the entire project lifecycle—from initial site assessment and system design through procurement, installation, commissioning, and handover. Our turnkey approach minimizes client burden while ensuring seamless integration of monitoring equipment with existing infrastructure.
For clients with specific technical requirements, we offer procurement services for specialized monitoring equipment and components. Our extensive supplier network and technical expertise ensure you receive genuine, high-quality equipment at competitive prices.
Continuous monitoring requires regular maintenance and occasional component replacement. We maintain comprehensive inventories of spare parts, calibration gases, sensor modules, and consumables to minimize downtime and ensure uninterrupted monitoring operations.
Our equipment portfolio includes everything needed for comprehensive environmental monitoring: gas analyzers for stack emissions (SO₂, NOx, CO, CO₂, O₂), particulate matter monitors (PM2.5, PM10, TSP), water quality analyzers (pH, conductivity, turbidity, dissolved oxygen, COD, BOD, suspended solids), ambient air quality monitoring stations, weather monitoring systems, noise level monitors, and data acquisition and transmission systems. Each piece of equipment is selected or manufactured to meet specific application requirements, ensuring optimal performance in your unique environmental conditions.
Read MoreOur team of experienced environmental engineers brings decades of collective expertise to every project we undertake. These professionals don't just understand monitoring equipment—they comprehend the complex environmental processes being measured, the regulatory frameworks governing emissions and effluents, and the practical challenges industries face in maintaining compliance.
When you engage our environmental engineering services, you benefit from comprehensive technical support that includes: detailed site assessments to determine optimal monitoring locations, system design and specification development tailored to your regulatory requirements, selection of appropriate monitoring technologies based on pollutant characteristics and measurement objectives, integration planning with existing control systems and data management platforms, compliance strategy development to meet CPCB/SPCB guidelines, and ongoing technical consultation to optimize monitoring performance.
What makes our environmental engineers particularly valuable is their cross-functional expertise. They understand not just the technical aspects of monitoring equipment but also the operational realities of industrial processes. This means they can recommend monitoring solutions that provide regulatory compliance without disrupting production workflows. For example, when designing a continuous emission monitoring system for a power plant, our engineers consider factors like flue gas composition variability, temperature fluctuations, particulate loading, maintenance access, and calibration frequency—ensuring the system performs reliably in real-world conditions.
Our environmental engineers also provide critical support during regulatory inspections and audits. They prepare comprehensive monitoring reports, validate data quality, troubleshoot anomalies, and communicate technical findings to regulatory authorities in clear, professional manner. This support has helped numerous clients successfully navigate environmental compliance audits and maintain their operating permits without interruption.
Read MoreAt the heart of every environmental monitoring system lies sophisticated electronics that acquire, process, and transmit critical environmental data. As an electronics manufacturer with deep expertise in industrial instrumentation, we design and produce custom electronic systems specifically optimized for harsh environmental monitoring applications.
Our electronics manufacturing capabilities span the complete spectrum of monitoring system components: high-precision sensor interfaces and signal conditioning circuits, microprocessor-based data acquisition modules with multi-channel inputs, intelligent transmitters with digital communication protocols (Modbus, RS485, Ethernet), power management systems for remote monitoring stations, ruggedized enclosures rated for industrial environments (IP65/IP67), and wireless communication modules for remote data transmission.
Our electronics design philosophy prioritizes reliability, accuracy, and longevity in demanding applications. We use industrial-grade components rated for extended temperature ranges and high humidity conditions typical in environmental monitoring. All circuit boards undergo conformal coating to protect against moisture and corrosive gases. Power supplies include surge protection and voltage regulation to handle unstable grid conditions common in industrial areas and remote locations.
A critical aspect of our electronics manufacturing is electromagnetic compatibility (EMC) and electromagnetic interference (EMI) testing. Our products undergo rigorous EMC/EMI validation to ensure they operate reliably in electrically noisy industrial environments without interfering with other equipment or being affected by external electromagnetic fields. This testing confirms compliance with CE Directive 2014/30/EU and ensures that monitoring data remains accurate even in proximity to high-power electrical equipment, motor drives, and communication systems.
Read MoreBeyond manufacturing and supplying equipment, we serve as trusted environmental consultants to industries navigating increasingly complex environmental regulations. Our consulting services bridge the gap between regulatory compliance requirements and practical implementation strategies, helping clients develop sustainable environmental management systems while maintaining operational efficiency.
Our environmental consulting engagements typically include: comprehensive environmental compliance audits identifying gaps in monitoring and reporting, regulatory interpretation services explaining CPCB/SPCB notification requirements, monitoring strategy development optimizing compliance costs while meeting all regulatory obligations, technology selection guidance evaluating monitoring technologies against specific application needs, data management strategy development for efficient reporting to regulatory portals, and capacity building through training programs for environmental compliance teams.
One area where our consulting services prove particularly valuable is in helping industries prepare for regulatory changes. Environmental regulations evolve continuously, with pollution control boards periodically updating monitoring requirements, emission limits, and reporting formats. Our consultants stay abreast of these regulatory developments and proactively advise clients on necessary system upgrades or modifications. This forward-looking approach helps clients avoid last-minute compliance scrambles and potential regulatory penalties.
We also provide litigation support services for industries facing environmental compliance disputes. Our engineers can review monitoring data, identify potential measurement errors or system malfunctions, and provide expert testimony when required. This technical expertise has helped several clients successfully resolve regulatory disputes by demonstrating either compliance with standards or mitigating factors that explain apparent exceedances.
Read MoreClean water is fundamental to both environmental health and industrial operations. As a specialized water treatment supplier, we provide comprehensive monitoring solutions for water and wastewater treatment applications. Our water quality monitoring systems help treatment plants optimize processes, ensure treated water meets discharge standards, and protect downstream water resources.
Our water treatment monitoring portfolio includes: online effluent monitoring systems for continuous compliance tracking, optical probe sensors using laser scattering for turbidity and suspended solids measurement, multi-parameter analyzers measuring pH, conductivity, temperature, dissolved oxygen, and ORP, specialized analyzers for COD (Chemical Oxygen Demand), BOD (Biological Oxygen Demand), and nutrients, real-time data transmission systems connecting to CPCB/SPCB servers, and automated sampling systems for laboratory analysis verification.
Our water quality sensors utilize advanced laser scattering methodology for continuous monitoring of total suspended matter, turbidity, and temperature. This non-contact optical technology eliminates the maintenance issues associated with traditional turbidity sensors while providing superior accuracy and long-term stability. These probes have proven highly reliable in thermal power plants, chemical facilities, metallurgical operations, pharmaceutical manufacturing, food processing, and municipal water treatment applications.
What distinguishes our water treatment monitoring solutions is the integration of sensors with intelligent data acquisition and reporting systems. Measurements are logged at one-minute intervals, averaged according to regulatory requirements (typically 15 minutes), and automatically transmitted to pollution control board servers via LAN or cellular connectivity. Automated SMS alerts notify operators immediately when parameters exceed preset limits, enabling rapid corrective action before regulatory thresholds are breached.
For industrial clients managing multiple water streams—raw water intake, process water, cooling water, and treated effluent—we design comprehensive monitoring networks that provide complete visibility into water usage and quality throughout their facilities. This integrated approach supports water conservation initiatives, identifies process optimization opportunities, and ensures all discharge points remain compliant with environmental standards.
Read MoreOur expertise extends beyond environmental monitoring to encompass broader industrial equipment supply capabilities. This comprehensive approach allows us to serve as a single-source partner for industrial automation and control requirements, simplifying procurement and ensuring seamless integration across different equipment categories.
Our industrial equipment supply services include: SCADA (Supervisory Control and Data Acquisition) systems for centralized monitoring and control, PLC (Programmable Logic Controller) based automation solutions, industrial robots for manufacturing applications, measuring sensors and transmitters for process control, cutting machines and fabrication equipment, bending machines and material handling systems, and complete system integration services ensuring all components work together harmoniously.
This diversified capability proves particularly valuable for turnkey industrial projects where environmental monitoring must integrate with broader facility control systems. For example, in a water treatment plant project, we can supply not only the water quality monitoring equipment but also the PLCs controlling pump operations, the SCADA system providing centralized visibility, and the sensors monitoring flow rates and tank levels. This integrated approach eliminates compatibility issues that often plague projects involving multiple vendors and ensures optimal system performance from day one.
Our industrial equipment supply services are backed by strong relationships with leading global manufacturers and component suppliers. We leverage these partnerships to offer competitive pricing, ensure product authenticity, maintain adequate inventory levels, and provide faster delivery times than would be possible through generic distributors. For critical projects with tight deadlines, our established supply chains become a competitive advantage that helps clients meet their commissioning schedules.
Accurate environmental monitoring depends fundamentally on the quality of measuring instruments at the heart of each monitoring system. As a specialized supplier of precision measuring instruments, we provide a comprehensive range of sensors, analyzers, and transmitters designed for environmental and industrial applications.
Our measuring instrument portfolio encompasses: gas analyzers utilizing techniques including non-dispersive infrared (NDIR), electrochemical sensors, and chemiluminescence detection, particulate matter monitors employing beta attenuation, light scattering, and triboelectric technologies, water quality sensors for physical, chemical, and biological parameters, meteorological instruments measuring wind speed/direction, temperature, humidity, pressure, and solar radiation, noise level monitors for ambient noise and occupational exposure monitoring, and flow measurement devices for stack gases and liquid streams.
What sets our measuring instrument supply apart is our technical selection expertise. Not all measurement technologies suit all applications—selecting the wrong analyzer can result in poor accuracy, high maintenance costs, or premature failure. Our engineers evaluate application-specific factors including pollutant concentrations, sample matrix composition, temperature and pressure conditions, required detection limits, response time requirements, and maintenance accessibility. Based on this analysis, we recommend instruments optimized for each specific monitoring application.
We also provide comprehensive calibration services to ensure measuring instruments maintain accuracy throughout their operational life. Our calibration laboratory maintains reference standards traceable to national and international standards, enabling us to perform factory calibrations before delivery and periodic recalibrations during operation. This calibration support, combined with our spare parts inventory and technical assistance, ensures monitoring systems deliver reliable data year after year.
Municipal water treatment and distribution systems represent critical infrastructure requiring specialized equipment and ongoing monitoring. As a water works equipment supplier, we provide comprehensive solutions for water utilities, municipalities, and industrial facilities managing their own water treatment operations.
Our water works equipment supply capabilities include: raw water monitoring systems for source water quality assessment, treatment process monitoring instrumentation tracking coagulation, filtration, and disinfection, finished water quality analyzers ensuring safe drinking water production, distribution network monitoring detecting leaks and quality changes, SCADA systems for remote monitoring and control of multiple treatment facilities, and energy management systems optimizing pump operations and reducing operating costs.
For municipal water utilities facing increasingly stringent drinking water quality regulations, our monitoring solutions provide real-time visibility into treatment process performance. Continuous monitoring of key parameters like turbidity, chlorine residual, pH, and alkalinity enables operators to detect process upsets immediately and make adjustments before water quality deteriorates. This proactive approach protects public health while reducing chemical consumption and energy costs through optimized treatment.
Our water works equipment supply services extend beyond individual instruments to encompass complete project delivery including civil and electrical engineering coordination, equipment installation and commissioning, operator training and documentation, and ongoing technical support and maintenance services. This comprehensive approach ensures water treatment facilities operate reliably and efficiently from commissioning through decades of operation.
We have particular expertise in retrofitting existing water treatment facilities with modern monitoring systems. Many older treatment plants lack the instrumentation needed to demonstrate regulatory compliance or optimize operations. Our engineers assess existing infrastructure, design monitoring upgrades that integrate with legacy control systems, and implement solutions with minimal operational disruption. These retrofit projects typically deliver rapid payback through reduced chemical costs, improved treatment efficiency, and avoided regulatory penalties.
Selecting the right monitoring systems manufacturer is one of the most important decisions you'll make for your environmental compliance program. Here's why discerning clients across India and international markets choose Drexel Electronics & Engg. Products Pvt Ltd:
With over three decades of experience and more than 1,000 successful installations, we've demonstrated our ability to deliver reliable monitoring solutions across diverse industries and challenging environments. Our client list includes power generation companies, pharmaceutical manufacturers, chemical processors, food producers, municipal utilities, and government research institutions.
Our team includes experienced environmental engineers, electronics specialists, software developers, and instrumentation technicians. This multidisciplinary expertise enables us to address complex monitoring challenges that require both deep technical knowledge and practical implementation skills.
ISO 9001:2015, ISO 14001:2015, ISO 45001:2018, TUV approvals, and CE certifications aren't just paperwork for us—they represent systematic quality management processes that ensure every product meets rigorous standards for performance, reliability, and safety.
Our relationship doesn't end with product delivery. We provide installation supervision, commissioning assistance, operator training, calibration services, spare parts supply, technical troubleshooting, and lifetime support to ensure your monitoring systems perform optimally for years to come.
We continuously invest in research and development to incorporate the latest sensor technologies, communication protocols, and data analytics capabilities. Our systems support integration with IoT platforms, cloud-based data management, and advanced analytics for predictive maintenance.
Environmental regulations vary by industry, location, and pollutant. Our team stays current with CPCB/SPCB notifications and international standards, ensuring our products meet all applicable requirements and helping clients navigate the complex regulatory landscape.
Our flagship CEMS solutions provide real-time monitoring of stack emissions from industrial processes, measuring critical parameters including sulfur dioxide (SO₂), nitrogen oxides (NOx), carbon monoxide (CO), carbon dioxide (CO₂), oxygen (O₂), particulate matter, opacity, stack gas flow rate, temperature, and moisture content. These systems utilize proven analytical technologies including non-dispersive infrared (NDIR) spectroscopy, electrochemical sensors, and zirconium oxide detectors for accurate, reliable measurement in harsh stack environments.
What makes our CEMS particularly valuable is the intelligent data acquisition and transmission system that automatically logs measurements, calculates regulatory averages, identifies exceedances, and transmits data to CPCB/SPCB servers without operator intervention. This automation reduces compliance burden while ensuring regulatory authorities receive timely, accurate emissions data. Our CEMS have been successfully deployed in thermal power plants, cement kilns, steel furnaces, chemical reactors, waste incinerators, and numerous other industrial applications across India.
Read MoreUrban air quality affects millions of people daily. Our ambient air quality monitoring stations provide continuous measurement of criteria pollutants including PM2.5, PM10, sulfur dioxide, nitrogen dioxide, carbon monoxide, ozone, and meteorological parameters. These stations utilize reference-equivalent or reference-grade analyzers approved by regulatory authorities for compliance monitoring and public health assessment.
For smart city initiatives and urban air quality management, our monitoring stations integrate with centralized data platforms, providing real-time air quality information to citizens through mobile apps and public displays. The systems support automated data validation, quality assurance protocols, and regulatory reporting in formats specified by Central and State Pollution Control Boards.
Read MoreIndustries discharging treated wastewater must demonstrate continuous compliance with effluent standards. Our online effluent monitoring systems measure key parameters including pH, temperature, conductivity, turbidity, total suspended solids, dissolved oxygen, COD, and flow rate. Advanced optical sensors using laser scattering technology provide accurate turbidity and suspended solids measurement without the maintenance issues of traditional contact sensors.
The monitoring data integrates with effluent treatment plant control systems, enabling automated process adjustments to maintain discharge quality. Automatic data transmission to CPCB/SPCB servers ensures regulatory compliance while SMS alerts notify operators of any parameter exceedances requiring attention.
Read MoreEnvironmental noise pollution affects both community health and worker safety. Our noise monitoring solutions include both community noise monitoring systems for ambient noise assessment and industrial noise dosimeters for occupational exposure monitoring. These systems measure noise levels across the frequency spectrum, calculate regulatory metrics like Leq, Lmax, and Lmin, and generate comprehensive reports for compliance documentation.
Read MoreOur environmental monitoring solutions support regulatory compliance and operational excellence across diverse industrial sectors:
Ready to implement reliable, compliant environmental monitoring solutions? Whether you're planning a new monitoring installation, upgrading existing systems, or seeking expert consultation on environmental compliance requirements, our team is here to help.
Contact Drexel Electronics & Engg. Products Pvt Ltd today for a free consultation with our environmental monitoring specialists.
Phone: +91 172 2998398 | +91 9316660098
Website: www.drexel.in
Location: New Delhi, India
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Why Wait? Environmental compliance requirements aren't getting simpler, and the cost of non-compliance continues to rise. Partner with a manufacturer who understands both the technical complexities of environmental monitoring and the practical realities of industrial operations.
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+12362090098
+91-9316660098
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TUV, ISO 14001:2015, ISO 9001:2015, ISO 45001:2018, related to CE Directive(s)
