India's trusted measuring instruments supplier delivering CPCB-compliant, real-time emission monitoring solutions across 1,000+ industrial installations nationwide.
Drexel Electronics and Engineering Products Pvt. Ltd. is Delhi's foremost measuring instruments supplier, specializing in Stack Emission Monitoring Systems (CEMS), Online Continuous Emission Monitoring, and comprehensive Industrial Stack Gas Analysis solutions. With 35+ years of engineering expertise and over 1,000 verified installations across India, we deliver precision emission monitoring technology engineered for real-world industrial demands.
Our advanced CEMS technology provides real-time, accurate monitoring of industrial emissions — helping businesses across Delhi and pan-India achieve full compliance with CPCB (Central Pollution Control Board) guidelines while simultaneously improving operational efficiency and reducing environmental risk.
Drexel manufactures and supplies state-of-the-art Online Continuous Emission Monitoring Systems engineered for 24/7 continuous operation and complete regulatory compliance.
Real-time monitoring of SO₂, NOₓ, CO, CO₂, O₂, HCl, HF, and other critical emission parameters with laboratory-grade accuracy for complete regulatory reporting.
Advanced DC-Triboelectric and Laser Back Scattering technology delivering precise SPM/PM measurements from 0–1,000 ppm in real time.
Specialized FID/PID sensors for Volatile Organic Compounds and Total Organic Carbon detection — ideal for pharmaceutical, chemical, and coating industries.
Automatic, secure data transmission to CPCB servers with up to 2 years of cloud-stored historical emission records for audit-ready compliance.
High-accuracy extractive CEMS featuring heated sampling probes and multi-stage gas cooling assemblies for clean, conditioned sample analysis.
Built-in remote zero and span calibration minimizes downtime and guarantees consistent measurement accuracy throughout system operation.
Every Drexel CEMS delivers automatic zero/span calibration, temperature and pressure compensation, and interference correction algorithms for maximum measurement reliability.
| Parameter | Measurement Range | Accuracy | Technology | CPCB Compliant |
|---|---|---|---|---|
| Sulfur Dioxide (SO₂) | 0 – 1,000 ppm | ±2% | NDIR / UV Fluorescence | ✓ Yes |
| Nitrogen Oxides (NOₓ) | 0 – 1,000 ppm | ±2% | Chemiluminescence / NDIR | ✓ Yes |
| Carbon Monoxide (CO) | 0 – 1% | ±2% | NDIR | ✓ Yes |
| Carbon Dioxide (CO₂) | 0 – 12% | ±2% | NDIR | ✓ Yes |
| Oxygen (O₂) | 0 – 25% / 0 – 100% | ±2% | Zirconium Oxide / Paramagnetic | ✓ Yes |
| Particulate Matter (SPM) | 0 – 1,000 mg/Nm³ | ±5% | DC-Triboelectric / Laser Back Scatter | ✓ Yes |
| VOC / TOC | 0 – 10,000 ppm | ±2% | FID / PID | ✓ Yes |
| HCl / HF | 0 – 100 ppm | ±3% | Electrochemical / FTIR | ✓ Yes |
⚡ Analysis Speed: Complete gas analysis cycle completed in just 2–3 minutes, enabling rapid response to emission exceedances.
Our Industrial Stack Gas Analysis systems employ multiple proven analytical methods to deliver the highest measurement accuracy across diverse industrial environments.
Precise CO, CO₂, SO₂, and NOₓ measurement with minimal cross-sensitivity between gas components.
Multi-component gas analysis for simultaneous detection of multiple pollutants in a single measurement cycle.
High-accuracy oxygen concentration measurement across wide ranges from 0–1,000 ppm up to 0.1–95%.
Sensitive detection of toxic and corrosive gases including HCl, HF, and trace acid components.
Proven in-stack particulate matter monitoring using probe electrification — ideal for high-temperature, high-moisture stacks.
Non-contact optical particle detection providing real-time dust concentration analysis with minimal maintenance.
Drexel's extractive CEMS integrates advanced sample conditioning with multi-analyzer technology for maximum measurement accuracy in even the harshest industrial environments — rated for –20°C to +60°C with full corrosion and dust resistance.
Stainless steel with integrated heating (180–200°C) to prevent sample condensation and contamination.
Insulated, temperature-controlled tubing maintaining sample integrity from probe to analyzer.
Multi-stage cooling reducing sample temperature to 2–5°C for efficient moisture removal.
Progressive filtration system protecting sensitive analyzer components from particulate damage.
Diaphragm/piston pumps with precision flow meters ensuring stable 1–3 L/min sample delivery.
Solenoid valve manifold for scheduled remote zero and span verification without manual intervention.
User-friendly interface with real-time parameter visualization, trend graphs, and alarm management.
Uninterrupted emission monitoring during power outages — no data gaps in CPCB reporting.
Drexel Electronics has successfully delivered CEMS solutions to diverse industrial sectors across Delhi, NCR, Punjab, Haryana, and pan-India.
Eight reasons industries across India consistently choose Drexel Electronics for mission-critical emission monitoring.
Every CEMS is engineered to your specific industrial process, stack dimensions, and emission profile — no one-size-fits-all approach.
All systems designed and manufactured strictly per CPCB guidelines and state pollution control board requirements.
Automatic IoT-enabled data upload to CPCB servers every 30 minutes via secure internet or mobile network.
Dedicated customer care executives and field service engineers ensure prompt issue resolution and minimal downtime.
Seamlessly upgrade obsolete or underperforming emission monitoring equipment with Drexel's modern technology stack.
Drexel pioneered India's first waste gas turbine in 1997 and has delivered advanced automation for Fortune 500 companies.
World-class system quality at cost-effective price points — with clear, no-hidden-cost commercial proposals.
Hands-on training programs covering system operation, maintenance, calibration, and troubleshooting for your team.
A clear, step-by-step engagement process ensuring your project is delivered on time, on spec, and fully compliant.
Speak with our CEMS experts via phone, email, or inquiry form.
On-site evaluation of stack configuration, emission sources, and installation requirements.
Detailed technical and commercial proposal tailored to your process.
Professional installation by certified engineers within 2–4 weeks.
Full system testing, calibration, operator training, and CPCB connectivity verification.
Annual maintenance contracts with 24/7 helpline and scheduled calibration checks.
Hear from the environmental managers, plant managers, and administrators who rely on Drexel CEMS every day.
"Drexel's CEMS solution not only ensured our CPCB compliance but also helped optimize combustion efficiency, delivering measurable fuel cost savings year over year."
"The Drexel team installed our biomedical waste incinerator monitoring system within the agreed timeline. We've maintained 99.8% system uptime over the past two years."
"Upgrading to Drexel's extractive CEMS transformed our environmental management. The improvement in measurement accuracy and real-time data access has been remarkable."
Trusted by Maruti Suzuki vendors, Escorts Ltd, HMT Pinjore, Bell Ceramics, Indian Acrylics Ltd, Railway Coach manufacturers, and numerous Fortune 500 companies.
Ready to ensure full environmental compliance? Our CEMS specialists will assess your requirements and provide a detailed, no-obligation technical and commercial proposal.
+12362090098
+91-9316660098
Toll-free no :- 1800-123-440098
Plot No 442,Industrial Area, Sector 82,Mohali Punjab, India 160055
TUV, ISO 14001:2015, ISO 9001:2015, ISO 45001:2018, related to CE Directive(s)
