CALL: A.WIHARTA 081294124885 085778084789 087784022201   Info Produk Series TRI, used to monitoring Boiler combines the value of an individual pressure and thermometer in one instrument. The moveable dial with the blue pressure markings and red temperature markings make the instrument easy to read. Pressure is indicated in both psi and kPa, while temperature is measured in both Fahrenheit and Celcius.