Brussels has called on EU states to consider common standards for security equipment at airports and major public gatherings.
In a new technology green paper, the European Commission has said last month’s London bomb plot shows European countries must work more closely together to improve detection of dangerous substances.
The EU is already working on ways to make air travel safer by collecting more extensive passenger information and using biometric passports.
Now anti-terrorism discussions are under-way about what other EU-wide action to take.
An official in Brussels said that because the products on the market are not uniformly certified it is often difficult to identify the best or those which meet certain minimum requirements.
Detection devices are also a concern for border control and customs work.
Consultations for improving public-private sector dialogue are due to run until early January.