The short answer: This Eufy S330 manual covers both the battery and wired versions of the Eufy Video Doorbell S330 — dual-camera pairing, HomeBase 2 setup, and package-detection angle — with links to eufy's official documentation and our full review.
Table of Contents
Quick Summary
| Detail | Info |
|---|---|
| Model | Eufy Video Doorbell S330 (battery or wired) |
| Cameras | Dual — 2K front-facing + secondary downward-facing for packages |
| Power (battery) | Built-in rechargeable, lasts 30–90 days per charge |
| Power (wired) | 16–24VAC, 30VA+ transformer required |
| Weather rating | IP65 |
| HomeKit support | Not supported (works with Alexa, Google Assistant) |
| Official manual | eufy Security Video Doorbell S330 User Manual |
| Full review | Eufy S330 Review |
Official Eufy S330 Manual
The full official documentation, covering both the battery and wired variants separately, is available through eufy's support materials: eufy Security Video Doorbell S330 User Manual. That's the place to check exact wiring diagrams if you're installing the wired version, since the two variants have different installation requirements.
This page is a faster route through the same process, with links back to our full Eufy S330 review if you're still deciding between the S330 and other dual-camera doorbells.
Eufy S330 Setup — Step by Step
- Charge the doorbell fully using the included Micro-USB cable before mounting it, if you have the battery version.
- Set up the HomeBase 2 first (battery version only) — connect it to power and your 2.4GHz Wi-Fi network via the eufy Security app before pairing the doorbell.
- Download the eufy Security app, create an account, and tap Add Device.
- Scan the QR code on the back of the doorbell to begin pairing.
- Mount the doorbell at around 1.2 metres (4 feet) from the ground, using the included 15° wedge if you need an angled view.
- Adjust the package-detection zone in the app for the secondary downward-facing camera, so it correctly frames your doorstep.
Eufy S330 Installation — Battery vs Wired
Battery installation pairs with the HomeBase 2, which provides 16GB of local storage and centralised management. eufy recommends this route if your home doesn't already have doorbell wiring — see our guide on installing a video doorbell without existing wiring for the broader process. The battery typically needs recharging every 30 to 90 days depending on usage.
Wired installation connects directly to your existing doorbell wiring and requires a 16–24VAC transformer rated at 30VA or higher. It uses a doorbell chime rather than a HomeBase, and offers continuous power without recharging cycles. Note that the wired and battery versions are separate products — you can't convert one into the other after purchase, so it's worth deciding which suits your home before buying.
Eufy S330 Troubleshooting
Doorbell won't connect to the HomeBase. Keep the two devices close together during initial pairing, even if the doorbell will be mounted further away afterwards — this mirrors most HomeBase-based eufy setups and resolves the majority of pairing failures.
Package-detection camera showing the wrong area. This is a framing issue, not a fault. Re-check the mounting height and angle — the secondary camera needs a relatively unobstructed downward view of your doorstep to work reliably.
Weak Wi-Fi at the doorbell or HomeBase. Since the S330 depends on a stable 2.4GHz connection, distance from the router matters. Our guide on improving video doorbell Wi-Fi signal covers extenders and mesh options for trickier spots.
Battery draining faster than 30 days. High motion-detection frequency in busy locations is the most common cause. Lowering sensitivity or narrowing the detection zone in the app usually extends battery life noticeably.
No power after wiring (wired version). Double-check your transformer meets the 16–24VAC, 30VA+ requirement before assuming the doorbell is faulty — an underpowered transformer is the most frequently reported cause of a wired S330 not turning on.
Frequently Asked Questions
Does the Eufy S330 need a subscription? No, local storage via the HomeBase 2 (battery version) or built-in storage (wired version) works without a monthly fee. Optional cloud storage plans are available.
Does the Eufy S330 work with Apple HomeKit? No, it currently supports Amazon Alexa and Google Assistant only, not HomeKit.
Can I use the battery S330 without a HomeBase? No, the battery version requires the HomeBase 2 for setup, local storage, and centralised app management.
What's the point of the second camera? The downward-facing camera is designed specifically for monitoring packages left at your doorstep, addressing a common blind spot on single-camera doorbells.
Can I share access with family members? Yes, the eufy Security app supports shared access, so household members can each receive alerts and view footage from their own devices.
Is the wired or battery version better for a UK home? It depends on your existing wiring — see our full review for a detailed breakdown of which suits different UK property types.
As an Amazon Associate, we earn from qualifying purchases at no extra cost to you. Prices correct at time of writing and verified on Amazon UK. Some images on this site are AI-generated and may not reflect the exact appearance of the products described.