SMC-630 Barometric Pressure Sensor

The SMC-630 series is a high performance atmospheric barometric pressure device. It is designed for high demanding applications as aviation and professional meteorology, where high reliability and accurate absolute pressure readings is desired.

   SMC-630 Datasheet (1 MB)           

Barometric pressure sensor SMC-630

Key features

  • Single, SMC-631 or Dual Pressure Head, SMC-632
  • Excellent Long term Stability
  • 0.3 hPa Total Accuracy
  • Serial NMEA Communication
  • 2 years Warranty


The SMC-630 uses quartz pressure elements which produces high accurate readings with an excellent long-term stability. The pressure range is 800 hPa to 1100 hPa with a total accuracy of 0.3 hPa.


The SMC-630 is delivered in a corrosive resistant hard anodized aluminium casing able to withstand harsh environments. The pressure sensor is IP66 rated.


The SMC pressure sensor has been calibrated for temperature variation which removes the temperature coefficient error in the output. SMC uses a multiple point calibration to cover the specified pressure range.


The SMC-630 have RS232 and RS485 outputs and is transmitting its data in a standard ASCII string. The pressure string is easily integrated to dataloggers and display software on the market.


Performance Total accuracy 0.3 hPa
Range 800-1100 hPa
Long Term stability 0.1 hPa per Year
Communication Com1: RS232
Com2: RS485

SMC Configuration software included
User selectable Output Protocols
Physical Housing Material Hard Anodized Aluminium
Dimensions (W x D x H) 135 x 60 x 83mm excl connector
Weight 1 kg

Pressure fitting: Barbed fitting for 1/8 inch hose
Cable connection 7-13mm cable diameter
Electrical connection: Terminal block
Environmental Operating Temperature -40° to +60° Celsius
MTBF (computed) 50 000 hours
Versions SMC-631 Single pressure head version
SMC-632 Dual pressure head version for pressure verification
Electrical Power requirements 12 - 30 VDC; 0.7 W
Standard Complies with the IEC 60945
Warranty & Support 2-year Limited Hardware & Software Warranty
Free Technical & Hardware support