SMC-520 Temperature and Humidity Sensor

Temperature and Humidity sensor SMC-520

Key points

• Operational range -40 to +60°C
• 0.2°C Temperature accuracy
• 1.5% Humidity accuracy
• Excellent long term stability
• Serial NMEA Communication
• 2 Years Warranty

Download SMC-520 Datasheet (1 MB)

      Download SMC-520 User guide (526 KB)


The SMC-520 is designed for high demanding outdoor applications for temperature and humidity measurement. It delivers a reliable and accurate readings for various meteorology applications as the Offshore industry.

The SMC-520 uses a high grade PT1000 element for the temperature measurement and a capacitive humidity sensor with excellent long-term drift performance. Data is processed within the instrument’s internal processor and output over serial RS232 and RS485 communication ports in a standard NMEA sentence format. With the NMEA XDR standard message format the SMC-520 can be used in third party systems and most existing systems as well as SMC´s Monitoring System applications for graphical presentation and data logging.

Configuration Software

The SMC meteorological temperature and humidity sensor is delivered with the windows based SMC Configuration Software. Sensor configuration and offset adjustments to the temperature and humidity measurement can be made onsite using the instrument configuration software.


Each SMC temperature sensor is induvidually factory calibrated for the range -40 to +60 degrees Celsius. The humidity sensor is adjusted for both temperature and humidity level parameters to deliver accurate data. SMC uses a multiple point calibration to cover the specified temperature and humidity range.


Performance Temperature Accuracy 0.2° Celsius
Temperature Range -40 to +60° Celsius
Temperature Long Term stability <0.1° Celsius per Year
Humidity Accuracy 1.5% in the range 0...90%, 2% in the range 90...100%
Humidity Range 0...100%
Humidity Long Term Stability 0.25% per year typical
Communication Com1: RS232
Com2: RS485

SMC Configuration software included
User selectable Output Protocols
Physical Housing Material UV resistant ABS plastic
Dimensions (H x ØW) 245 x 35mm excl connector
Weight 0.2 kg

Cable connector 8 pins, M12 connector. 3 meter shielded PUR cable included
Environmental Operating Temperature -40° to +60° Celsius
MTBF (computed) 50 000 hours
Electrical Power requirements 12 - 30 VDC; 0.6 W
Complies with the IEC 60945
Warranty & Support 2 Years Hardware & Software Warranty
Free Technical & Hardware support

SMC-560 Solar Radiation Shield

Solar Radiation Shield SMC-560

Key points

• Protection from solar radiation
• Pole mount bracket included
• Fits the SMC-520 Temp/Humidity
• Maintenance free
• Non-Corrosive Material
• 2 Years Warranty

Download SMC-560 Datasheet (441 KB)



The SMC SMC-560 is a natural ventilated Solar Radiation Shield that provides excellent protection for solar radiation and precipitation. The solar radiation shield is designed for outdoor installations of temperature and humidity sensors and is UV resistant.

The shield is delivered with a pole mounting bracket in stainless steel 316L for poles with diameter 30-60mm and a fixation gland for mounting the probe with an outer diameter of 18-25mm.


Physical Plate Material UV resistant ABS plastic, 19 plates
Dimensions (H x D x W) 375 x 190 x 129mm
Weight 1.0 kg
Mounting bracket in 316L Stainless steel
Delivered with 2x U-Bolts for clamping a pole with diameter of 30-60mm
Environmental Operating Temperature -40° to +60° Celsius
Warranty & Support 2-year Limited Hardware & Software Warranty
Free Technical & Hardware support

Solar Radiation Shield SMC-560

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