Campbell EE181-L Air Temperature and Relative Humidity Probe

Specifications
Supply Voltage 7 to 30 Vdc (typically powered by the datalogger’s 12 V supply)
Average Current Consumption < 1.2 mA
Filter Description 30 ?m pore size, stainless-steel mesh
Startup Time 2 s
Housing Body Material Plastic
Housing Classification IP65
Sensor Diameter 2.1 cm (0.83 in.)
Length 16.0 cm (6.3 in.)
Weight 290 g (10.2 oz) with 5 m cable
Air Temperature
Sensor 1000 ? Platinum Resistance Thermometer (PRT)
Operating Temperature Range -40° to +60°C
Storage Temperature Range -40° to +80°C
Output Signal Range 0 to 1 Vdc
Accuracy ±0.2°C (at +23°C)
Relative Humidity
Sensor Capacitance
Measurement Range 0 to 100% RH (non-condensing)
Output Signal Range 0 to 1 Vdc
Temperature Dependence Typically 0.03% RH/°C
-NOTE- Accuracy specifications include hysteresis, non-linearity, and repeatability.
Accuracy at -15° to +40°C
±(1.3 + 0.003 • RH reading) % RH (0 to 90% RH)
± 2.3% RH (90 to 100% RH)
Accuracy at -25° to +60°C ± (1.4 + 0.01 • RH reading) % RH
Accuracy at -40° to +60°C ± (1.5 + 0.015 • RH reading) % RH