- Home
- Security cameras
- Eufy (Anker)
Does the Eufy (Anker) Indoor Cam 2K (T8400) work without internet?
Still checking this one. 5 of 7 criteria ticked so far for the Eufy (Anker) Indoor Cam 2K (T8400).
Verdict · as sold
UnverifiedNot checked enough to say yet. What is known is shown, with sources.
- Checked
- 5/7 checked
- Brand
- Eufy (Anker) · CN
- Model
- Indoor Cam 2K · rev. T8400
- Home Assistant
eufy_security· vendor cloud: always- Track record
- Not reviewed yet
Seven questions, as sold.
5 of 7 checked. Every yes or no links to its source and the date it was checked. Nothing here assumes a flash: that’s the next section.
- Works with the internet cut 01 · Not checked
Does the main function survive with the WAN cable pulled?
- No vendor account needed 02 · No
Can it be set up without creating an account with the manufacturer?
eufy states its cameras "require an account to receive real-time motion, sound notifications and video footage"; setup goes through the eufy Security app login.
- Documented local API 03 · Yes
Is there a publicly documented local protocol: HTTP, MQTT, ONVIF, RTSP, Zigbee, Z-Wave, Matter, Modbus?
Owners confirm the Indoor Cam 2K exposes an RTSP stream (capped at 1080p) once "NAS (RTSP Stream)" is enabled in the app; eufy documents the feature generically at service.eufy.com and notes it only streams while live-viewing or recording an event.
- Can be firewalled off for good 04 · Not checked
Can it be cut off from the internet permanently without anything breaking?
- Firmware updates without the cloud 05 · No
Can it be updated by hand, with no forced auto-update?
eufy states devices with network access "upgrade the firmware automatically in the wee hours"; the only manual path is "check for firmware update" in the app. No file upload.
- Runs alternative firmware 06 · Yes
Can it run ESPHome, Tasmota, OpenBeken, Valetudo or OpenIPC?
Thingino lists "Eufy C120 T8400X" (T31X SoC, SC3335 sensor); eufy's own pages give the Indoor Cam 2K / Indoor Cam C120 the model number T8400. Check the suffix on your unit.
- Home Assistant talks to it locally 07 · Yes
Is the Home Assistant integration local_push or local_polling?
No core eufy integration; the documented generic route is the RTSP stream into the Generic Camera integration (Local Push), with the caveat that the stream is only live during viewing or event recording.
Already own one? Into Home Assistant, then.
A different question from the verdict. Home Assistant can talk to a device locally and still need Eufy (Anker)’s servers to get started, or for good. This is what the integration itself needs.
Yes, but through Eufy (Anker). The integration talks to Eufy (Anker)'s servers rather than to the Eufy (Anker) Indoor Cam 2K (T8400) itself, so it only works while Eufy (Anker) keeps those servers up.
- Route
- Custom integration, via HACS
- Integration
eufy_security- Vendor cloud
- Always
- Verified
- 2026-09-22
The HACS integration (iot_class cloud_push) drives the eufy-security-ws add-on, which logs in to the eufy cloud with a dedicated secondary account and then streams over P2P; the cloud session stays up. The camera's own RTSP stream can instead be pulled by the generic camera integration, but it only runs while the camera is live-viewing or recording an event.
Question 08 · the company
Eufy (Anker)’s track record.
Nothing on record. That isn’t a clean bill yet: it takes a proper look through the vendor’s changelog, and that hasn’t been done for Eufy (Anker). Two candidates reviewed, neither asserted. The November 2022 controversy (9to5google.com) showed cameras sold as local-only uploading thumbnails and face data to the cloud and exposing unauthenticated streams; that is hidden cloud dependence, not the removal of a local feature. A Homebase 3 firmware pushed on 2026-03-14 stopped RTSP on connected S300 and S220 cameras and was still broken on 3.8.7.4 in September 2026 (community.eufy.com), but eufy has neither acknowledged nor announced a removal, so it is recorded here as an unfixed regression rather than a revocation.
Editor’s note
In plain words.
Model T8400, also sold as the Indoor Cam C120 and the Solo IndoorCam C24. Set it up with a eufy account, enable "NAS (RTSP Stream)" and Home Assistant or an NVR can pull video over the LAN, but only while the camera is already live-viewing or recording an event, and firmware only ever arrives through the app. Whether it keeps recording to its microSD card indefinitely with the internet cut is unproven: one owner saw it give up after a few days. Thingino lists the board, but the install path is not yet documented.
Wrong? Probably somewhere.
Say where. A link and a sentence is enough. Every claim above carries its source so it can be checked.