B0807 uses differential capacity sensor with two 316SS diaphragms to measure all kinds of liquid or gas. B0807 can measure differential pressure under very high static pressure (7MPA) and very low differential pressure (1.5KPA). It will not be damaged even if under the single-side pressure (14MPA). B0807 zero / full-scale / linearity can be adjusted and with a 5:1 scale positive and negative transfer function.