What we do
Mesra Alam Sekitar is a DOE iRemote-registered Continuous Emission Monitoring System specialist. From design and installation through QAL testing, maintenance and DOE integration, one team owns the whole lifecycle — so your facility stays clean, compliant and connected.
System design, supply, installation, commissioning and DOE data connection — as a single accountable partner. CIDB G3, 200+ installations nationwide.
Learn more →Independent QAL2 calibration, QAL3 drift monitoring and the Annual Surveillance Test — so your emission data stays accurate and accepted.
Learn more →Preventive servicing, drift checks, genuine spares and on-call support that protect your data availability and your compliance record.
Learn more →Connecting your CEMS to the DOE iRemote / CEMS 3.0 system so compliant emission data reaches the Department of Environment continuously.
Learn more →QAL2 is the EN 14181 calibration of your CEMS on your actual stack. A DOE-registered tester runs Standard Reference Method (SRM) measurements in parallel with your system, establishes the calibration function, and confirms variability is within limits — proving the system is right for your installation, not just certified in a lab. More on QAL2/QAL3 testing →
QAL3 is the ongoing quality assurance between QAL2 tests: monitoring zero and span drift on control charts so a developing fault is caught early, before it becomes a compliance breach.
It means the system is supplied and installed by a consultant registered with the Department of Environment, and the equipment is registered through the DOE System for CEMS. That's separate from type-certification (MCERT/TÜV QAL1) — you generally need both. Read the full explanation →
MCERTS (UK) and TÜV (Germany) are the two main QAL1 type-certification schemes. DOE requires a CEMS to be MCERT- or TÜV QAL1-certified before installation. The important detail is that the certified measuring range must match your daily Emission Limit Value.
iRemote (CEMS 3.0) is the DOE's national system for receiving continuous emission data. After a CEMS passes its Calibration and Variability Test, validated data must be transmitted to the DOE server continuously — a registered activity carried out by a DOE-registered party. More on DOE integration →
It depends on your activity and emission points under the Environmental Quality (Clean Air) Regulations 2014. Our guide walks through the law, or speak to us to confirm your specific obligations.