Access your commercial doors is as easy as the push of a button with the Allstar 831T transmitter. Made for use with a single commercial door or gate, this control transmitter features three simple pushbuttons for Open, Close and Stop functions. In addition, the Stop function is colored red for easy identification in case of an emergency. There is also a slight beveling around each of the pushbuttons, which will help to avoid accidentally triggering the transmitter if something touches or leans on the device. The Allstar 190-107483 831T one-channel door transmitter is compatible with these receivers: 831R, 831RJ, MVP-3CH-24V-3T-4W, MVP-3CH-12V-8W-FC, MVP-3CH-24V-8W-FC, MVP-RE-24V-8W-FC, and MVP-MR.
Ahlstrom's qualitative grades of filter paper are, by definition, recommended for use in analytical methods, which determine or identify particulate constituents of a mixture irrespective of the amount present. Ahlstrom offers a complete range of low ash filter papers for general laboratory work that provides you with the correct combination of particle retention, filtration speed, loading capacity and wet-strength. Qualitative analysis, low ash content 0.06 percent, untreated, consistent performance, wet-strengthened grades, custom cut. These grades contain a high level of alpha-cellulose that provides high purity but will weaken when wet. The inherent strength of standard (untreated) grades does not pose a problem when they are used in routine quadrant folded applications. We do not recommend these grades for use in vacuum work or when wet handling is required.