| 摘要 |
The device comprises a sensing cable 5 formed by two independent electrical conductors 6, 7 which are insulated from each other by a hydrophilic material. A casing 1 containing a low-voltage current source 2 is associated with this cable 5, which source supplies the said cable through a detection circuit 3 capable of actuating an alarm 4 when the electric current passes from one conductor to the other under the effect of the humidity. The patent describes several embodiments of the cable 5. <IMAGE>
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