WaveShark

915 MHz

Itron ERT meters

North American utility meters: the consumption number, the meter id and the type, in SCM, SCM+ and IDM formats.

Itron ERT endpoints are on gas, water and electricity meters across North America, transmitting a consumption total every few seconds so a passing van or a fixed collector can read the street without anybody walking it.

The three message formats are read: SCM and SCM+ carry the running total, and IDM adds interval data. The meter id is stable, which is what makes a meter a device rather than a sighting.

What comes out

  • Meter id and endpoint type
  • Consumption total, as the meter counts it
  • Tamper flags for the physical and encoder switches
  • Message format: SCM, SCM+ or IDM
$ waveshark --tune 915 --span 2400 --survey

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