Monitor humidity inside air returns Measures humidity from 0 to 100% RH Accurate to ±3% RH Set high and low limits by programming the Sensaphone Sensaphone will go into alarm when humidity exceeds limit Thermoset Polymer based capacitive sensor type The Duct Mount Humidity sensor will measure and provide real time humidity values to any Sensaphone that accepts a 4-20mA signal. When the Humidity level falls outside of the Sensaphone’s programmed high or low limit, the user will receive an alarm which displays or reads the current humidity value. The sensor can be programed to detect humidity levels from 0 to 100% RH. The duct mount enclosure allows the sensor to be mounted in a return air duct. A 24V DC power supply is required to power the sensor. Technical Specifications Humidity Level Monitoring Range: 0 to 100% RHAccuracy @ 25°C: 3% RH (5 - 95% RH)Dimensions: 4.5w x 3.3h x 2.1d" | 114 x 84 x 53mmSensor Response Time: 15 seconds typicalStability: 1% RH typical at 50% RH in 5 yrsOperating Temperature Range: -40° to 158°F | -40° to 70°COperating Humidity: 0 to 95% RH non-condensingHousing: IP65 NEMA 4XNotes: Requires a 24VDC power supply (FGD-0070) Downloads 4-20mA Type Duct Mount Humidity Sensor Sales Brochure4-20mA Type Duct Mount Humidity Sensor Instructions