BTIS SMF - Breakthrough Indicator Stickers - Sewer Manhole Filter
Sewer Manhole Filter Breakthrough Indicator Stickers (BTIS SMF). It indicates the saturation of sewer manhole filters. The indicator is reliable and cost effect means for protection from exposure to toxic gases and vapors. It alerts user to replace the exhausted filter.
Adhesive at the bottom of sticker make it easy attach to filter outlet. It operates at temperatures 4oC to 32oC (39oF to 89.6oF) and humidities 5% RH to 95%RH. It is 1.5-inch diameter. Unique design prevents any color change due to exposure to contaminants in the surrounding environment. It changes color only when filter is saturated. Service life at least one year plus one year shelf life.
Sewer Manhole Filter Breakthrough Indicator Stickers (BTIS SMF).