Wi-Fi security camera and video doorbell
Continuously streaming 100 mW transmitters, usually mounted at head height near doors and windows, giving about 8,000 µW/m² at 1 m.
radiofrequencyhomeoutdoorworkplace
Last verified 12 August 2026.
Also searched as: IP camera, video doorbell, smart doorbell
- Category
- radiofrequency
- Emission bands
- 2.4 GHz ISM; 5 GHz U-NII
- Environments
- home, outdoor, workplace
- Transmit power
- 0.1 W EIRPRegulatory value — legally enforceable — Typical Part 15 consumer transmitter power. Transmit power is the regulatory or typical maximum; real devices often transmit below it and reduce power when link quality allows.sources: fcc-part15
- Duty cycle
- Cloud-recording cameras stream continuously; local-recording and motion-triggered units transmit only on events.
Field strength by distance
- 30 cm
- 88,400 µW/m²Computed estimate — S = EIRP / (4πd²) with EIRP = 0.1 W, d = 0.3 msources: fcc-part15
- 1 m
- 7,960 µW/m²Computed estimate — S = EIRP / (4πd²) with EIRP = 0.1 W, d = 1 msources: fcc-part15
- 3 m
- 884 µW/m²Computed estimate — S = EIRP / (4πd²) with EIRP = 0.1 W, d = 3 msources: fcc-part15
Mitigations, most effective first
- Switch to Power-over-Ethernet cameras with the radio disabled.
- Removes the transmitter while keeping the function.
- Set cameras to event-triggered rather than continuous upload.
- Cuts duty cycle from ~100% to a few percent.
Measure with
- Broadband RF power-density meter
Related records
- Wi-Fi router (2.4 / 5 / 6 GHz)
A consumer access point radiating roughly 100 mW EIRP per band, giving about 8,000 µW/m² at 1 m and 80 µW/m² at 10 m in free space.
Sources & emitters
Sources
- fcc-part15 47 CFR Part 15 — Radio Frequency Devices (unlicensed transmitter power limits) — U.S. Government Publishing Office (eCFR). regulation, link checked 2026-08-12.
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