Hygrochip Series digital humidity sensors from Innovative Sensor Technology (IST) AG, Wattwil, Switzerland, combine a capacitive humidity sensor element with an ASIC and deliver RH and temperature measurements over an I2C-compatible interface. The series includes the HYT-271, HYT-221, HYT-939 that feature measuring ranges of 0%–100% RH and –40°C to 125°C; ±1.8% RH and ±0.2°C accuracy; and stability in high humidity. The HYT-939 can also withstand pressures up to 16 bar. Applications include handheld measurement instruments, HVAC, metrology, medical devices, industrial drying systems, and agriculture, depending on the device.
Innovative Sensor Technology (IST) AG