Gas Detector Sensor: Singapore's Home Team to Launch Xplorer Satellite by 2029

Singapore's Home Team will launch its first satellite by 2029, deploying a gas detector sensor to identify hazardous ammonia plumes from space. The Silicon Review reports on Xplorer's 100kg hyperspectral payload and how it will cut emergency response times for the SCDF.

Singapore is taking public safety to orbit. The Home Team is set to launch its first satellite by 2029, a groundbreaking initiative to detect hazardous gases from space and give emergency responders life-saving early warnings. 

The satellite, codenamed Xplorer, will weigh approximately 100 kilograms and be deployed into a near-equatorial orbit. It is being developed by the Home Team Science & Technology Agency (HTX) in collaboration with ST Engineering. 

Xplorer is equipped with advanced hyperspectral long-wave infrared and electro-optical sensors essentially a highly sophisticated gas detector sensor capable of identifying dangerous chemical plumes, including ammonia, methanol, and formaldehyde, from hundreds of kilometers above the Earth. 

"If we can get information even 10 minutes earlier, that is enough to save lives," a senior official noted during the Milipol TechX Summit at the Sands Expo and Convention Centre, where the plan was announced on April 28. 

Currently, SCDF relies on ground-based observations and commercial satellites, which can take one to two hours to deliver data. Xplorer aims to cut that window to less than 10 minutes, enabling the force to map toxic clouds, predict their dispersion, and evacuate civilians far faster. 

While not primarily a gas sensor for detecting explosive leaks in confined spaces like factories, Xplorer represents a leap in wide-area surveillance. It will monitor Singapore’s dense shipping lanes and industrial zones for invisible threats. 

Beyond gas detection, the satellite will assist in mapping emergency access routes and supporting security planning for major events. 

This initiative aligns with Singapore’s broader strategy to build "sovereign technological capabilities." Coordinating Minister for National Security K. Shanmugam emphasized that while technologies like Xplorer may not be central to daily operations today, "they will shape tomorrow’s strategic advantage." 

The project coincides with the establishment of the National Space Agency of Singapore (NSAS) on April 1, 2026.  HTX is also working with NVIDIA and Mistral AI on specialized AI models to process the satellite's hyperspectral data. 

"If this first satellite works, the plan is to deploy a constellation of similar sensors to ensure Singapore’s skies remain safe," revealed a scientist from HTX’s Disruptive Technologies Office. 

As the Home Team prepares to launch Xplorer a gas detector sensor designed to spot toxic plumes from space The Silicon Review examines how Singapore is using hyperspectral optics and near-equatorial orbits to buy its first responders the ten minutes that could mean the difference between chaos and control.