HCLA pressure sensors from Sensortechnics Inc., Walpole, MA, are suitable for ultra low gauge or differential pressure measurements from 2.5–75 mbar (1–30 in.H2O). Features include amplified analog and digital (I2C) output signals, SPI or switching outputs, custom-specific outputs on request, and a dual-chip compensation technique for high offset stability and virtually no position sensitivity. A 3 V supply voltage is available as an option. Typical applications include medical devices such as ventilators, respirators, or anesthesia machines as well as environmental controls and HVAC.
Ultra Low Pressure Sensors from Sensortechnics