// meta-items  1
  wm2Bogus, wm2Undefined,
// BMP085 & DHT22      3         4
   wm2PressureInches, wm2RH,  wm2TempF,
// depth gauge
   wm2DepthInches,
// lightning detector          7                       8
  wm2LightningDistanceNOTUSED, wm2LightningDistPerHourNOTUSED, wm2LightningEnergyNOTUSED,
//         9                    10
    wm2LightningFlashesNOTUSED, wm2LightningNoisePerHourNOTUSED,
// on-off & ACDetect
  wm2IsNowOn,
// resistance
  wm2Resistance,
// SPS30          14          15          16          17           18         19
  wm2MassPM1, wm2MassPM25, wm2MassPM4, wm2MassPM10, wm2NumPM05, wm2NumPM1, wm2NumPM25,
//    20         21           22
    wm2NumPM4, wm2NumPM10, wm2PartSize,
// switch closures   24           25                26               27
  wm2EventCount, wm2Frequency, wm2FrequencyMax, wm2FrequencyMin, wm2FrequencyRaw,
//     28          29             30
    wm2Jammed, wm2NewEvents, wm2SwitchClosed,
// Thermostats
//     31
  wm2TargetF,
// VC0706 camera         33
  wm2VC0706Motion, wm2VC0706Snap,
// voltage
//    34
  wm2Voltage,
// add-on
//    35              36               37                38             39
  wm2DewpointF, wm2DeviceFailure, wm2FailureDatum, wm2RelayAckNOTUSED, wm2VC0706Manual,
//    40           41          42             43           44
  wm2HumidexF, wm2CO2ppm, wm2RainMMPerHour, wm2Calibrate, wm2SpeedupChanged,
//    45
  wm2Prototype


