The UK Navy has received the first of two new submarine escape analysers from gas sensors and analysers manufacturer Analox Sensor Technology.
The company supplied two SUB MKIIPs as part of its £1.5m contract to replace 72 analysers being used by the navy's fleet of submarines.
In the event of a distressed submarine the analyser will provide accurate real-time monitoring of oxygen and carbon dioxide levels, pressure and temperature inside the submarine escape compartment.
As a successor to the Analox SUB E-IR15P analyser, the compact and lightweight SUB MKIIP is the only available monitor that meets current Nato requirements.
Around 2,500 people will be trained annually in the use of the analyser, and monitoring the atmospheric changes will be a vital part of the training.