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Enabling better global research outcomes in soil, plant & environmental monitoring.

Apogee TS-110-SS Aspirated Radiation Shield with Thermistor

The TS-110 Fan-aspirated Radiation Shield model includes the TS-100 shield and an ST-110-SS thermistor. The unique aerodynamic shape and rugged, low-power fan make it the first research-grade fan-aspirated shield that is practical for use on battery or solar powered stations. The shield provides excellent sensor protection and accommodates various combinations of thermistors, PRTs, and humidity probes using one of the sensor port adapter plugs. Typical applications include air temperature and humidity measurement in weather networks, often for weather forecasting, and solar energy sites. Fan-aspirated shields are also important in the precise measurement of air temperature and humidity gradients above the land surface and in climate change monitoring.

The ST-110 is a high accuracy thermistor (± 0.1 C from -40 to 60 C) designed to minimise solar load and thermal conduction. White heat shrink is used on the cable behind the thermistor to reduce solar load. Constantan wire is used to minimise thermal conduction down the wire towards the thermistor. The ST-110 is designed to make air temperature measurements in Apogee’s TS-100 Aspirated Radiation Shield and can be used in static, multi-plate shields from other companies as well.

Difference among Individual Replicate Shields: Less than 0.1°C
Aspiration Rate: 6 m/s at full-speed, 3 m/s at half-speed
Fan Input Voltage Requirement: 10.8 to 13.2 V DC
Fan Current Drain: 80 mA at full-speed, 25 mA at half-speed
Fan Dust and Water Protection: IP55
Operating Temperature Range: -40 to 70°C
Dimensions: 220 mm height, 270 mm diameter
Mass: 840 g
Cables: 5 m of shielded, twisted-pair wire for fan and air temperature sensors with santoprene rubber jacket (high water resistance, high UV stability, flexibility in cold conditions)
Temperature Sensor: ST-110
Warranty 4 years against defects in materials and workmanship