How to Read Sensor Data String Outputs

Owned by Sean Haley
Last updated: Nov 28, 2018
3 min read

Low Pressure Sensor (Vacuum Sensor)

  • Serial Number Prefix “E0”
  • Measured Phenomena - Pressure/temperature sensor, 99.99 to -99.99 PSI gauge pressure range.
  • Data string example: “^008, 12.04,PSI, 2.3,C,2.99,V,015%”
  • Data string description:

“^link address, primary measurement (pressure), units (PSI), secondary measurement (ambient temperature), units (°C), battery voltage, units (V), RSSI%”

Medium Pressure Sensor (Pneumatic Sensor)

  • Serial Number Prefix “E2”
  • Measured Phenomena - Pressure/temperature sensor, 999.9 to -999.9 PSI gauge pressure range.
  • Data string example: “^003, 82.4,PSI, 2.3,C,2.99,V,015%”
  • Data string description:

“^link address, primary measurement (pressure), units (PSI), secondary measurement (ambient temperature), units (°C), battery voltage, units (V), RSSI%”

High Pressure Sensor (Hydraulic Sensor)

  • Serial Number Prefix “E4”
  • Measured Phenomena - Pressure/temperature sensor, 9999 to -9999 PSI gauge pressure range.
  • Data string example: “^005, 824,PSI, 2.3,C,2.99,V,015%”
  • Data string description:

“^link address, primary measurement (pressure), units (PSI), secondary measurement (ambient temperature), units (°C), battery voltage, units (V), RSSI%”

Temperature Sensor (Probe)

  • Serial Number Prefix “E5”
  • Measured Phenomena – Fluid Temperature
  • Data string example: “^004,-11.0,C,2.96,V,030%”
  • Data string description:

“^link address, primary measurement (temperature), units (°C), battery voltage, units (V), RSSI%”

Temperature Sensor (Foot)

  • Serial Number Prefix “E6”
  • Measured Phenomena – Surface Temperature, Ambient Temperature
  • Data string example: “^008,-11.0,C, 84.3,C,2.96,V,030%”
  • Data string description:

“^link address, primary measurement (temperature), units (°C), secondary measurement (temperature), units (°C), battery voltage, units (V), RSSI%”

Humidity Sensor (Pneumatic)

  • Serial Number Prefix “E7”
  • Measured Phenomena - Humidity/temperature sensor
  • Data string example: “^003, 32.4,%, 21.8,C,3.08,V,032%”
  • Data string description:

“^link address, primary measurement (relative humidity), units (percent %), secondary measurement (temperature), units (°C), battery voltage, units (V), RSSI%”

Current Sensor  

  • Serial Number Prefix “E9”
  • Measured Phenomena - Single phase current (average, peak) sensor
  • Data string example: “^005, 42.0,%, 59.4,%,3.06,V,025%”
  • Data string description:

“^link address, average measurement, units (percent % of full scale amperage), peak measurement, units (percent % of full scale amperage), battery voltage, units (V), RSSI%”

Analog Transmitter  

  • Serial Number Prefix “ED”
  • Measured Phenomena – 4mA to 20mA Sensor Transmitter
  • Data string example: “^008,100.00,%,2.99,V,028%”
  • Data string description:

“^link address, primary measurement, units (percent % of mapped native measurement), battery voltage, units (V), RSSI%”

Flow Sensor (Pneumatic)  

  • Serial Number Prefix “EF”
  • Measured Phenomena - Gas flow sensor,
  • Data string example: “^006,4095,,4095,,4095,,3.02,V,031%”

(The flow sensor is a special case, it does not return calibrated readings with units – just raw 12 bit ADC values for use with calibration/flow calculation formulas)

  • Data String Description:

“^link address, differential pressure (raw count value), absolute pressure (raw count value), temperature (raw count value), battery voltage, units (V), RSSI%”


Vibration Sensor (Accelerometer)  

  • Serial Number Prefix “F1”
  • Measured Phenomena – Acceleration or Velocity with temperature output
  • Data string example (sensor outputs three data strings):

1st (X) data string: “^008, 1256,Xpk, 2504,Xrms,2.99,V,028%” 

2nd (Y) data string: “^008, 3456,Ypk, 4510,Yrms, -11,C,028%” 

3rd (Z) data string: “^008, 3210,Zpk, 5202,Zrms,16,g,A,028%” 

  • Data string description:

1st data string: “^link address, X peak measurement, Xpk, X RMS measurement, Xrms, battery voltage, units (V), RSSI%”

2nd data string: “^link address, Y peak measurement, Ypk, Y RMS measurement, Yrms, secondary measurement, units (°C), RSSI%”

3rd data string: “^link address, Z peak measurement, Zpk, Z RMS measurement, Zrms, acceleration range (2, 4, 8, or 16 in g), units (mg or 100*mm/sec), acceleration/velocity mode (A or V), RSSI%”

*Note that each acceleration data item is 5 digits long and will be padded out with leading spaces as needed.  

Flexible Displacement Transmitter (Strain or Position)

  • Serial Number Prefix “F2”
  • Measured Phenomena –Strain Sensor Transmitter with temperature output.
  • Data string example (device transmits two data strings):

1st (Channel A) data string: “^006,A,101.20,%, 45.2,C,3.02,V,031%” 

2nd (Channel B) data string: “^006,B, 21.40,%, 45.2,C,3.02,V,031%”  

  • Data string description:

1st data string: “^link address, channel A, percent strain, %,  temperature, units (°C), battery voltage, units (V), RSSI%”

2nd data string: “^link address, channel B, percent strain, %,  temperature, units (°C), battery voltage, units (V), RSSI%”