SenTechBioMed Corporation is no longer in business. SenTechBioMed Corporations primary focus is in the development of wireless biomedical sensors, such as the Magnetoelastic Gastric pH sensors, and inexpensive disposable Smart-tube sensors used for characterizing the chemical components in saliva. SenTech is also developing sensor networks able to diagnose the chemical composition in air or in aqueous environments. Applications of the aqueous sensor network include pollution control, water security, etc