Humidity/Temperature Sensors from IST

Innovative Sensor Technology (IST) AG

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.