Temperature & Humidity Sensors (Probes, Radiation Shields and Displays)

Temperature and relative humidity sensors measure air temperature and humidity, two of the most important measurements in any weather station. Our range includes R.M. Young relative humidity/temperature probes with 4-20 mA or 0-1 VDC outputs, platinum RTD and thermistor temperature sensors, Gill multi-plate radiation shields that protect the sensors from solar radiation and precipitation, and the Temp Tracker temperature and humidity display.

Model 41372L Relative humidity/temperature probe.

The Model 41372L Relative Humidity/Temperature Probe combines a high accuracy Vaisala Intercap capacitance type humidity sensor and a 1000 ohm platinum RTD temperature sensor in one probe. The probe is easily installed in R.M. Young multi-plate and aspirated shields. This probe has 4-20 mA outputs for temperature and RH.

Sensor type	Temperature: 1000 ohm platinum RTD Humidity: Vaisala Intercap capacitance type
Measuring range	Temperature: -50 to 50°C (calibrated) Humidity: 0-100% RH
Accuracy	Temperature at 0°C: ±0.3°C Humidity at 20°C: 3% from 10 to 90% RH and 4% from 1 to 10 and 90 to 100% RH
Time constant	Temperature: 42 seconds with Model 43408 aspirated shield Humidity: 15 seconds
Stability	Humidity: better than ±2% over 2 years
Operating temperature	Humidity: -10 to 60°C (accuracy reduced below -10°C)
Output	Temperature: 4-20 mA Humidity: 4-20 mA
Power required	Temperature: 12-30 VDC, 20 mA Humidity: 12-30 VDC, 40 mA

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Manufacturer
R.M. Young

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Model 41372V Relative humidity/temperature probe.

The Model 41372V Relative Humidity/Temperature Probe combines a high accuracy Vaisala Intercap capacitance type humidity sensor and a 1000 ohm platinum RTD temperature sensor in one probe. The probe is easily installed in R.M. Young multi-plate and aspirated shields. This probe has 0-1 VDC outputs for temperature and RH.

Sensor type	Temperature: 1000 ohm platinum RTD Humidity: Vaisala Intercap capacitance type
Measuring range	Temperature: -50 to 50°C (calibrated) Humidity: 0-100% RH
Accuracy	Temperature at 0°C: ±0.3°C Humidity at 20°C: 3% from 10 to 90% RH and 4% from 1 to 10 and 90 to 100% RH
Time constant	Temperature: 42 seconds with Model 43408 aspirated shield Humidity: 15 seconds
Stability	Humidity: better than ±2% over 2 years
Operating temperature	Humidity: -10 to 60°C (accuracy reduced below -10°C)
Output	Temperature: 0-1 VDC Humidity: 0-1 VDC
Power required	Temperature: 8-24 VDC, 5 mA Humidity: 8-24 VDC, 9 mA

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Manufacturer
R.M. Young

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Model 41382L Relative humidity/temperature probe.

The Model 41382L Relative Humidity/Temperature Probe combines a high accuracy Rotronic Hygromer™ capacitance type humidity sensor and a 1000 ohm platinum RTD temperature sensor in one probe. The probe is easily installed in R.M. Young multi-plate and aspirated shields. This probe has 4-20 mA outputs for temperature and RH.

Sensor type	Temperature: 1000 ohm platinum RTD Humidity: Rotronic Hygromer™ capacitance type
Measuring range	Temperature: -50 to 50°C (calibrated) Humidity: 0-100% RH
Accuracy	Temperature at 0°C: ±0.3°C Humidity at 20°C: ±2%
Time constant	Temperature: 42 seconds with Model 43408 aspirated shield Humidity: 10 seconds without filter
Stability	Humidity: better than ±1% over 1 year
Operating temperature	n/a
Output	Temperature: 4-20 mA Humidity: 4-20 mA
Power required	Temperature: 10-28 VDC, 20 mA Humidity: 10-28 VDC, 40 mA

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Manufacturer
R.M. Young

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Model 41382V Relative humidity/temperature probe.

The Model 41382V Relative Humidity/Temperature Probe combines a high accuracy Rotronic Hygromer™ capacitance type humidity sensor and a 1000 ohm platinum RTD temperature sensor in one probe. The probe is easily installed in R.M. Young multi-plate and aspirated shields. This probe has 0-1 VDC outputs for temperature and RH.

Sensor type	Temperature: 1000 ohm platinum RTD Humidity: Rotronic Hygromer™ capacitance type
Measuring range	Temperature: -50 to 50°C (calibrated) Humidity: 0-100% RH
Accuracy	Temperature at 0°C: ±0.3°C Humidity at 20°C: ±2%
Time constant	Temperature: 42 seconds with Model 43408 aspirated shield Humidity: 10 seconds without filter
Stability	Humidity: better than ±1% over 1 year
Operating temperature	n/a
Output	Temperature: 0-1 VDC Humidity: 0-1 VDC
Power required	Temperature: 10-28 VDC, 5 mA Humidity: 10-28 VDC, 8 mA

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Manufacturer
R.M. Young

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Model 41342L Temperature probe.

The Model 41342L Temperature Probe consists of a 1000 ohm platinum RTD temperature sensor. The probe is easily installed in R.M. Young multi-plate and aspirated shields. This probe has a 4-20 mA output.

Sensor type	1000 ohm platinum RTD
Measuring range	-50 to 50°C (calibrated)
Accuracy	±0.3°C at 0°C
Time constant	42 seconds with Model 43408 aspirated shield
Output	4-20 mA
Power required	12-30 VDC, 20 mA

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Manufacturer
R.M. Young

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Model 41342V Temperature probe.

The Model 41342V Temperature Probe consists of a 1000 ohm platinum RTD temperature sensor. The probe is easily installed in R.M. Young multi-plate and aspirated shields. This probe has a 0-1 VDC output.

Sensor type	1000 ohm platinum RTD
Measuring range	-50 to 50°C (calibrated)
Accuracy	±0.3°C at 0°C
Time constant	42 seconds with Model 43408 aspirated shield
Output	0-1 VDC
Power required	8-24 VDC, 5 mA

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Manufacturer
R.M. Young

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Model 44203 Temperature sensor.

The Temperature Sensor incorporates the YSI 44203® Thermilinear network, consisting of resistors and precision thermistors that produce an output voltage linear with temperature. The thermistor network is embedded in a stainless steel tube with epoxy resin. The sensor can be used outside the specified temperature range with reduced accuracy.

Sensor type	Thermilinear network consisting of resistors and precision thermistors
Measuring range	-30 to 50°C (calibrated)
Accuracy	±0.12°C at -30°C ±0.07°C at 11°C ±0.02°C at 50°C (±0.15°C thermistor absolute accuracy and interchangeability)

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Manufacturer
Inteltronics Instrumentation / YSI

Model 41002 Gill 6-plate radiation shield.

The Model 41002 Gill Multi-Plate Radiation Shield protects temperature and relative humidity sensors from error-producing solar radiation and precipitation. The shield relies on a combination of plate geometry, material and natural ventilation to provide effective shielding.

Sensor types	Accommodates temperature and humidity sensors up to 26 mm diameter
Radiation error	At 1080 W/m² intensity, dependent on wind speed: 0.4°C RMS at 3 m/s 0.6°C RMS at 2 m/s 1.5°C RMS at 1 m/s
Construction	UV-stabilised white thermoplastic plates Aluminium mounting bracket, white powder coated Stainless steel U-bolt clamp
Dimensions	12 cm (4.7 in) diameter
Mounting	Fits vertical pipe 25-50 mm (1-2 in) diameter

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Manufacturer
R.M. Young

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Model 41003 Gill 12-plate radiation shield.

The Model 41003 Gill Multi-Plate Radiation Shield protects temperature and relative humidity sensors from error-producing solar radiation and precipitation. The shield relies on a combination of plate geometry, material and natural ventilation to provide effective shielding.

Sensor types	Accommodates temperature and humidity sensors up to 26 mm diameter
Radiation error	At 1080 W/m² intensity, dependent on wind speed: 0.4°C (0.7°F) RMS at 3 m/s (6.7 mph) 0.7°C (1.3°F) RMS at 2 m/s (4.5 mph) 1.5°C (2.7°F) RMS at 1 m/s (2.2 mph)
Construction	UV-stabilised white thermoplastic plates Aluminium mounting bracket, white powder coated Stainless steel U-bolt clamp
Dimensions	13 cm (5.1 in) diameter x 26 cm (10.2 in) high
Mounting	Fits vertical pipe 25-50 mm (1-2 in) diameter

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Manufacturer
R.M. Young

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Model 46203 Temperature Humidity Tracker.

The Temp Tracker is a versatile temperature and relative humidity indicator. Measured values are displayed on the front panel in large illuminated digits: temperature is shown on the left, relative humidity or dewpoint is shown on the right. Maximum and minimum values are saved and can be viewed at any time. The Temp Tracker includes the following useful features: fully-programmable alarms for both channels, alarm relays, calibrated voltage outputs for connection to recording devices, and RS-485 output for interfacing with serial devices.

Temperature Range	-50.0 to 150.0°F, -50.0 to 50.0°C
Relative Humidity Range	0 to 100%
Display Resolution	Temperature: 0.1°C, 0.1°F Relative Humidity: 1% Dewpoint: 1°C, 1°F
Compatible Sensors	Model 41372LC (T & RH) Model 41342LC (T only)
Voltage Outputs	0-5 VDC Full Scale for T & RH
Alarm Relays	Normally open contacts for T & RH Contact rating 5A resistive, 2A inductive @ 250 VAC, 30 VDC
Power Requirement	12-30 VDC, 4.5 W

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Manufacturer
R.M. Young

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