Liquid manometer with electrical output! Designed and manufactured by Kimo Instruments, the ECM electrical contact pressure regulator combines the reliability and accuracy of the liquid manometer with electronic circuitry. The operating principle provides unmatched performance compared to conventional pressure regulators. Kimo Instruments ECM pressure regulators are ideal for monitoring small pressure variations in air or gas. Air or gas pressure must be monitored and where accurate and reliable monitoring is essential. The ECM is often used in pharmaceutical laboratories, clean rooms and other areas where good performance is required.