Adapters are provided for opposed cradle heads of a shaker arm for mounting a plurality of containers of different sizes. The data modification system comprises an incoming data terminal, a local data terminal, and a data modification unit coupled to the incoming data terminal and the local data terminal, wherein the data modification unit is adapted to selectively combine data from the incoming data tenninal and the local data terminal. The plurality of projections comprise at least one row of aligned projections having a non-circular face extending opposite to the top portion of the brush head. The sensitivity default value of each alert grade for each sensor defines the critical actuation value of the respective sensor for the respective alert grade. The volume-adjustable chamber may be combined with a desiccant such that, as air moves into the expansion chamber, it passes over the desiccant, which removes moisture that has penetrated into the sealed module.