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Baby monitor

Belongs to:
Home
Synonyms:
Baby surveillance
Description:

With baby monitors, infants can be monitored acoustically. Thereby a transmitter records the sound of the children and transmits it via radio technology to a mobile receiver. The receiver is equipped with loudspeakers and reproduces the sound.

Frequency ranges:
  • 40 MHz
  • 466 MHz
  • 864 MHz
  • 2,450 MHz
Type of field:
electromagnetic

Measurements (acc. to literature)

40.7 MHz
Measurand Value Feature Remarks
power density 0.002 mW/m² (measured) - at a distance of 3 m at a power of 10 mW [1]
power density 0.004 mW/m² (measured) - at a distance of 1 m at a power of 10 mW [1]
446 MHz
Measurand Value Feature Remarks
power density 0.446 mW/m² (measured) - at a distance of 3 m at a power of 500 mW [1]
power density 3.151 mW/m² (measured) - at a distance of 1 m at a power of 500 mW [1]
864 MHz
Measurand Value Feature Remarks
power density 0.052 mW/m² (measured) - at a distance of 3 m [1]
power density 0.537 mW/m² (measured) - at a distance of 1 m [1]
900 MHz
Measurand Value Feature Remarks
electric field strength 0.8 V/m (measured) - at a distance of 100 cm [2]
electric field strength 1.1 V/m (measured) - at a distance of 70 cm [2]
electric field strength 2.43 V/m (measured) - at a distance of 50 cm [2]
SAR 0.01 mW/kg (maximum, measured) - averaged over the whole body of a 1- and 2-year-old child at a distance of 100 cm [2]
SAR 0.1 mW/kg (maximum, calculated) - averaged over the whole body of a 1- and 2-year-old child at a distance of 50 cm [2]
2.4 GHz
Measurand Value Feature Remarks
electric field strength 1.2 V/m (measured) - at a distance of 100 cm [2]
electric field strength 2.73 V/m (measured) - at a distance of 70 cm [2]
electric field strength 5.02 V/m (measured) - at a distance of 50 cm [2]
power density 0.032 mW/m² (measured) - at a distance of 3 m [1]
power density 0.424 mW/m² (measured) - at a distance of 1 m [1]
SAR 0.02 mW/kg (measured) - averaged over the whole body of a 1- and 2-year-old child at a distance of 100 cm [2]
SAR 0.33 mW/kg (maximum, calculated) - averaged over the whople body of a 2-year-old child at a distance of 50 cm [2]
SAR 0.34 mW/kg (maximum, calculated) - averaged over the whole body of a 1-year-old child at a distance of 50 cm [2]
not specified
Measurand Value Feature Remarks
magnetic flux density 0.1 µT (mean, measured) - at a distance of 30.48 cm [3]
magnetic flux density 0.2 µT (maximum, measured) - at a distance of 30.48 cm [3]
magnetic flux density 0.4–1.5 µT (measured) - at a distance of 15.24 cm [3]
magnetic flux density 0.6 µT (mean, measured) - at a distance of 15.24 cm [3]
SAR 0.08 W/kg (maximum, measured) - averaged over 10 g of tissue at a distance of 1 m to the device [4]
power ≤ 500 mW - maximum transmit power [4]

References

  1. Schmid G et al. (2007): Exposure caused by wireless technologies used for short-range indoor communication in homes and offices.
  2. Ibrani M et al. (2014): Assessment of the exposure of children to electromagnetic fields from wireless communication devices in home environments.
  3. EPA (1992): EMF in your Environment- Magnetic Field Measurements of Everyday Electrical Devices.
  4. Swerdlow AJ et al. (2012): Health Effects from Radiofrequency Electromagnetic Fields - RCE 20.