The Model 5190 Temperature and Humidity Probe is designed for a variety of environmental monitoring applications, including AWI's Automated Weather Observing Systems (AWOS). This probe operates with a DC supply voltage and has a low current draw. Relative humidity is measure with a thin-film capacitor sensor, while temperature is measured using a highly accurate Pt100 Resistance Temperature Detector (RTD). The low drift and wide operating range of the Pt100 RTD make the Model 5190 ideal for precision applications.
Model 4470 & 4480 Series Temperature Probes
The Model 4470 temperature probe utilizes a platinum element. It has an accuracy of ±.01°C and an incredibly wide measurement range of -50°C to +100°C. The Model 4480 temperature probe incorporates a precision composite thermistor that produces a linear output voltage which is proportional to the range of temperature. All units in the 4480 series feature a 3-element composite, with a measuring range of -50°C to +50°C.