HS1101 humidity sensor price is available at sensotec website.
HS 1101 Sensor Features:
High reliability and long term stability
Patented solid polymer structure
Suitable for linear voltage or frequency output circuitry
Fast response time
Individual marking for compliance to stringent traceability requirements
Operating Temperature : -40 to 100 °C
Storage Temperature : -40 to 125 °C
Supply Voltage : 10 Vac
Humidity Operating Range : 0 to 100 % RH
Soldering @ T = 260°C : 10 s