EcH20 Temperature Sensor

Relative Humidity and Temperature Sensor

How it works:

Relative Humidity and Temperature Measurement
When you use the RH/Temperature sensor as part of a radio datalogger system, you can monitor conditions in the greenhouse without leaving your desk. The RH/Temperature sensor outputs relative humidity and temperature data as a digital signal.

Below is the mathematical explanation. A CD containing an Excel file to do calculations is included with your Infiltrometer purchase.

Specifications
Accuracy: ± 2% from 1-90% RH) ± 3% from 0-1% RH and 90-100% RH Cable length: 3m (10 ft) standard 15m (50 ft) extension cables available Resolution: 0.1% RH Operating Environment: -38 to 60°C	Range: 0 to 100% RH Connector type: 3.5mm plug Temperature Accuracy: -40 to -20°C: ±1.0°C s5 to 40°C: ±0.5°C 40 to 60°C and -20 to 5°C: better than ±1.0°C Probe dimensions: 4.44 x 1.68 x 0.74cm

Temperature Sensor
The Temperature Sensor measures temperature in the soil or in the air. It plugs into any Decagon Datalogger.

Specifications
Sensor Dimensions: 6mm diameter, 37.5mm long Cable Length: 3.05m (10.0ft) Accuracy: 1°C (-40 to 0°C) 0.25°C (0°C and above)	Resolution: 0.06°C (-40 to 0°C) 0.015°C (0°C and above) Temperature Range: -40 to 60°C

For additional technical information see: http://www.decagon.com/canopy/rh_sensor and   http://www.decagon.com/canopy/temp_sensor