SH Thin-film Humidity Sensing Element

Thin-film Humidity Sensing Element SH

• Low cost
• Wide T/RH operating zone
• Operating temperature up to 200°C
• Excellent sensibility
• Very good dynamic properties
• Short response time
• Long-term stability
• Measurement range: 0 - 100 %RH

The SH relative humidity sensing element consists of a system of electrodes on a glass-ceramic substrate, covered by a humidity-sensitive polymer coating and a water-vapor permeable metallic membrane. This coating system represents a humidity-dependent capacitor. Utilizing the principal of capacitive measurement, SH measures relative humidity in air or other non-aggressive gases and gas mixtures with good long-term stability and linearity, small hysteresis, and excellent dynamic response.