The Hazardous Location Transmitters – Model T28 Series is a loop powered two-wire process transmitter that has been designed and manufactured to provide liquid process measurement and control in hazardous locations. A choice of measurement parameters include: pH, ORP, Specific Ion, Dissolved Oxygen, Conductivity or Resistivity. With its highly intelligent microprocessor design and durable stainless steel enclosure, the T28 is explosion proof and intrinsically safe, simple to install, calibrate for use in demanding hazardous applications.