The relative humidity may then be calculated as; Note that the RH #166 Sender Unit is powered (+5 VDC and GRD) by the master unit; TM #128, IOM #135E, IOM #136 or IOM #142A.
A germicide is any type of product that is designed to kill germs and bacteria on different types of surfaces. Many household cleaning products are formulated to function as germicides. In addition, there are some personal care products that are designed to help kill germs as part of the process of cleaning the skin.
Most pool supply distributors can offer an astounding selection of algaecides for your swimming pool, and if you do not understand how they work or what each algaecide should be used for making the right choice can be difficult. An algaecide is either a copper based algaecide, or a quat or polyquat algaecide. Copper based algaecides use copper to treat and prevent algae growth, and can be used against all types of algae. Copper algaecides will not cause foam in a swimming pool, which may be a problem with the quat algaecides.