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Flame and Gas Detection

Seraya Engineering Pte Ltd proudly serves as the authorised distributor of the MSA/Sierra Monitor flame and gas detection system in Singapore. Renowned for their exceptional performance and safety certifications, these detectors provide reliable and user-friendly solutions for detecting a wide range of toxic and combustible gases.

Our comprehensive range of MSA/Sierra Monitor gas detectors combines advanced technologies with superior precision, ensuring early detection of potential hazards. With our commitment to quality and customer satisfaction, we prioritize delivering the most reliable and efficient gas detection systems to our clients in Singapore.

At Seraya Engineering, we understand the critical importance of gas detection in various industries. By choosing our MSA/Sierra Monitor solutions, you gain peace of mind knowing that you have invested in cutting-edge technology that meets the highest industry standards.

Enhance the safety and security of your operations with our MSA/Sierra Monitor flame and gas detection system. Contact us today to learn more about our range of solutions and how we can support your specific needs. Trust Seraya Engineering for top-notch performance and protection in gas detection.

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Engineers and Businesspeople

Found in 1978, Sierra Monitor Corporation has over 40 years of expertise in designing, manufacturing, and selling advanced hazardous fire and gas detection systems to customers worldwide. Since its beginnings, Sierra Monitor has merged information and instrumentation technology to deliver comprehensive solutions to protect life and assets.

Today, thousands of sites in the oil & gas, government, pharmaceutical, building/construction, manufacturing, utility segments, and aerospace utilize MSA/SMC-branded controllers and gas sensors to protect life and assets.

Our products Approvals and Standards:

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We have a large selection of gas sensors and controllers for various detection applications to meet your every needs.

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SMC 5100 Series Combustible Monitor

The SMC 5100-02-IT gas sensor monitors combustible gases such as Methane, Hydrogen, Propane, and others. It is based on catalytic bead technology, a consistent and reliable method of detection that offers excellent response times to the target gases. The 5100-02-IT sensor offers multiple communication outputs including 4-20 mA and Modbus RTU.

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SMC 5100 Series Toxic Gas Detector

The SMC 5100-XX-IT gas detector monitors toxic gases such as Hydrogen Sulfide, Carbon Monoxide, Nitrogen Dioxide, Ammonia, Oxygen Deficiency, and others. The detector requires calibration only every six months, cutting operating costs and time. As part of the SMC Sentry IT platform, the detector can be remotely diagnosed and calibrated via Remote Sensor Capability.

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ULTIMA® X5000 Gas Monitor

The ULTIMA® X5000 Gas Monitor is the future of gas detection for oxygen, toxic and combustible gases. MSA XCell® gas sensors with TruCal® technology offer calibration cycles up to 24 months (local calibration respected). The gas transmitter's advanced, multi-lingual OLED display is easy to read and the unique touch-screen interface makes it simple to navigate.


IR5500 Open Path Infrared Gas Detector

The IR5500 is an open path infrared (IR) gas detector that continuously monitors for flammable gas leaks over large open areas. It monitors in both the LEL-m and ppm-m ranges to detect both small and large leaks. The IR5500 offers the benefits of early detection with its high sensitivity to gas concentrations at the ppm levels.  This feature allows it to alarm faster than an LEL-only detector. Digital display and adjustable mounting arms ensure easy alignment. Factory calibrated for low-maintenance operation.

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FL500 UV/IR Flame Detector

The FL500 UV/IR Flame Detector monitors for radiation emitted by a flame in both the ultraviolet (UV) and infrared (IR) spectral ranges. This UV/IR combination provides a fast response time and increased false alarm immunity against sources of radiation for reliable protection.

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Senscient ELDS™
Open Path Gas Detector

Senscient open path gas detector ensures best in class false alarm rejection


The Senscient ELDS laser-based open path gas detector is available for a wide range of toxic and flammable gases. The Senscient ELDS uses 'SimuGas' self-testing to eliminate employees entering hazardous areas for gas checks. Nuisance false alarms are virtually eliminated with its breakthrough Harmonic Fingerprint processing.

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9010/9020 SIL Control System 

9010/9020 SIL controller offers a maximum flexibility in conjunction with a wide variety of detectors. It operates with either one (9010) or two (9020) independent channels per control module which makes it logically independent, highly economical and therefore best suited for smaller gas detection
installations. The dual channel capability allows a high density packaging of up to 20 points in a single 19” rack.

Its new SIL compliant design offers a higher safety function to increase the protection level for facilities and people.
A high level of reliability is ensured as each control module is fitted with an independent AC/DC power supply unit and
logic circuit with software validated according to ATEX Directive.

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SENTRY io® Controller

Powerful fire and gas detection controller for mid-size industrial applications


The SENTRY io Controller offers a robust, easy to use platform for nearly any application and skill level. Modern touchscreen HMI supports intuitive setup, operation, and troubleshooting workflows. Guided setup and auto-recognition of MSA and General Monitors® flame and gas detectors through HART saves valuable time during setup and configuration.

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Chillgard® 5000 Refrigerant Leak Monitor

The Chillgard 5000 Refrigerant Leak Monitor provides the earliest level of detection of costly refrigerant gas leaks in mechanical equipment rooms. Sampling system with patented photoacoustic infrared (PAIR) technology detects leaks as low as 1 part per million (ppm). Intuitive, touchscreen user interface makes it easy to operate. Predictive maintenance and diagnostics keep you operational.

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Observer® i Ultrasonic Gas Leak Detector

Instantly detect pressurized gas leaks with this high-precision, omni-direction acoustic detector utilizing Gassonic® ultrasonic technology. Works even when traditional methods of gas detection are unsuitable or dependent on ventilation. The Observer-i UGLD provides an industry-leading detection range (up to 28 m) reducing the number of detectors required. 


Bacharach’s MGS-450 Gas Detector

MSA Bacharach’s MGS-450 Gas Detector makes compliance with refrigeration safety codes simple and easy, saving time and money on equipment and installation. Using the MGS-400 App, users can intuitively use, commission and maintain their gas detection system without the need for specialty training or tools. Pre-calibrated sensor modules simplify maintenance, take minutes to exchange and do not require the use of calibration gas. 

Seraya Engineering Pte Ltd

2 Jurong East Street 21

#04-23, IMM Building

Singapore 609601

Tel: +65 6252 1737

Installation & Deployment

Calibration Services

On-site Commissioning Services

Maintenance Service Contract

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