Moisture sampler is an inert and compact sampler used to obtain soil moisture samples or filtered water samples for greenhouse management, forest studies, environmental research, waste water sampling, and soil pollution monitoring applications. This sampler consists of a hydrophylic polymer tube with a stainless steel wire inside to provide support. The sampler can be installed in the soil either vertical or horizontal, with horizontal being preferable due to greater soil compaction around the sampler and thus better moisture extraction.