... and drainage, and environmental protection system and the industry level measurement of a variety of media.Compact structure, simple ... pressure Ying formula: = ρ. GH + Po Where: P: Ying-level pressure transmitter ρ: liquid density measured g: the local acceleration due ... than 35mA. 3. Solid-state structure, no moving parts, high reliability, long service life. 4. Convenient to install, simple ...