Its most important function is to provide very quick and reliable connection to a sensor of a valve joint.
http://www.murrelektronik.com/en/news/news/index.php?id=122
The time of connecting to a sensor has been reduced by 90% when compared to traditional couplings.
The new MQ12 coupling satisfies all the requirements demanded by customers from that kind of device:
First of all, it is fully compatible to existing solutions. The price is also very close to the existing ones, which is an additional incentive to implement new MQ12 couplings.