HIH7120-021-0011 - Honeywell HumidIcon™ Digital Humidity/Temperature Sensors: HIH7000 Series, I2C, ±3.0 %RH accuracy, SIP 4 Pin, without filter, non-condensing
Datasheet: https://sensing.honeywell.com/index.php?ci_id=147071
Prog: command-mode-humidicon-tn-009062-3-en-final-07jun12.pdf
sps-siot-humidicon-hih7000-series-product-sheet-009074-6-en-ciid-147071.pdf (external link)
Lib: Lib: https://github.com/stevemarple/HIH61xx (HIH61xx and CC2D33 compatible)
...
*connect via 0.22 µF to ground
i2c address: 0x27 (0x53)
±1.7 %RH (HIH9000 Series)
±2.0 %RH (HIH8000 Series)
±3.0 %RH (HIH7000 Series)
±4.0 %RH (HIH6100 Series)
±4.5 %RH (HIH6000 Series)
Sensors test examples:
Test 0 v9 balcony high humidity
Test 1 v9 humidity absorber draft
Test 2 v9 new sensors overview
Test 5 v10b NaCl solution draft