Model PT03 pressure transmitters with flush diaphragm foil strain gauge with high precision no cavity measuring diaphragm especially suitable for measuring the viscosity of the liquid. The product installation structure was optimized by using the improved makes the product has a good ability to resist vibration. Match with a variety of amplifier circuit with distinctive features such as anti-jamming high temperature resistant safety explosion-proof type etc. make the type is suitable for oil food and other measuring control occasions.