【Model number：ALS-20SR】

This device releases the weights when metal plate was corrosion in the sea water after the setting time passed .
It adopts lead SW and, on the occasion of start / reset, can perform it by bringing a magnet close and incorporate it in waterproofing containers because the connection of cables and the direct touching for SW are unnecessary.
In addition, it is equipped with a sleep function and realizes electric power saving even if power supply connection is in a state.