| abstract |
An apparatus for measuring conditions in concrete (60), the apparatus comprising a sensor (10) for measuring the conditions and a housing (20) for protecting the sensor (10) during installation in a concrete casting, the housing (20) comprising an interior (25) and at least one opening (26) , and the sensor (10) is mounted inside the housing (20) of the protective cover (20), characterized in that the device further comprises a plug (41) formed of carbon dioxide ice or carbon dioxide snow (40) fitted in the opening (26). In addition, protection requirements 2-5. |