Theme features:HQ711 new generation dynamic proportional measurement circuit, combined with screened imported pressure sensors By precise temperature compensation, the accuracy and long-term stability of pressure measurement have been greatly improved Micro power design greatly reduces the frequency of battery replacement for users It is very suitable for on-site pressure measurement and laboratory use, completing precision pressure measurement and calibration of pressure instruments such as general pressure gauges and precision pressure gauges It can completely replace pointer type precision pressure gauges