Portable Gas Detector Calibration
Portable Gas Detector Calibration ensures that gas detection instruments provide accurate readings for hazardous gases, protecting personnel and facilities. At CT Precise Engineering Sdn Bhd, we provide calibration and bump testing for all major brands of portable gas detectors across Malaysia, including in Selangor, Johor, Kuala Lumpur, Penang, Terengganu, Kedah, Pahang (Gebeng) and Kemaman.
Our calibration services help clients meet workplace safety regulations and manufacturer requirements — ensuring gas monitors perform reliably in critical environments.
Frequently Asked Questions – Portable Gas Detector Calibration Inspection in Malaysia
Portable Gas Detector Calibration Inspection is the process of verifying and adjusting the accuracy of handheld gas detection devices used to identify hazardous gases such as oxygen deficiency, combustible gases, carbon monoxide, and hydrogen sulphide. In Malaysia, calibration is essential to comply with DOSH (Department of Occupational Safety and Health) requirements, ensure worker safety, and avoid costly operational disruptions caused by inaccurate readings.
We provide calibration and inspection for most major brands, including:
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RAE Systems (MultiRAE, QRAE)
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Dräger (X-am series, Pac series)
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MSA (Altair series)
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Honeywell BW (GasAlert MicroClip, Max XT II)
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Industrial Scientific (Ventis MX4, Tango TX1)
Our technicians are trained and certified to work with both single-gas and multi-gas detectors.
Most manufacturers recommend calibration every 6 months, but in harsh environments such as refineries, offshore platforms, and chemical plants, calibration may be required every 3 months or before critical confined space entries.
The process includes:
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Zero Calibration – Resetting the detector’s baseline in clean air.
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Bump Test – Exposing the sensors to a known concentration of calibration gas to verify response.
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Span Calibration – Adjusting the sensor output to match the calibration gas concentration.
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Final Verification & Documentation – Recording results for compliance with DOSH and ISO standards
Yes. We offer both on-site calibration for immediate operational readiness and workshop calibration for more detailed servicing. On-site calibration is ideal for offshore rigs, petrochemical plants, and remote industrial sites across Malaysia.
An uncalibrated detector may give false alarms or fail to detect dangerous gas levels, leading to potential injury, fatalities, legal non-compliance, and downtime. DOSH inspections can also result in fines or operational shutdowns if detectors are found out of calibration.
Our team offers rapid mobilisation, covering Johor, Penang, Klang Valley, Kuantan, Sabah, Sarawak, and offshore facilities. For urgent requirements, we can deploy within 24–48 hours.