The HQ711 features a new-generation dynamic ratiometric measurement circuit combined with carefully selected imported pressure sensors. Through precise temperature compensation, it significantly improves pressure measurement accuracy and long-term stability. Its ultra-low-power design greatly reduces the frequency of battery replacement. It is ideal for on-site pressure measurement and laboratory applications, including precision pressure measurement and calibration of general pressure gauges, precision pressure gauges, and other pressure instruments. It can fully replace conventional analog precision pressure gauges.