Quick answer
GW2000 and GW3000 are both Ecowitt Wi‑Fi + Ethernet gateways that bring outdoor RF sensors onto your LAN. Local data and Home Assistant paths run through the gateway, not through sensors like the WS90 alone.
Choose GW2000 / GW2001 if you are starting with a WS90 kit, want a simpler setup, and need Ethernet plus local access out of the box. The Atmosiva page /weather-stations/ecowitt-gw2000 is the GW2001 commercial bundle (GW2000 + WS90) — not a gateway-only SKU.
Choose GW3000 if you are already building or expanding an Ecowitt ecosystem, want microSD local logging, and prefer a gateway-only hub with sensors sold separately — GW3000 product page.
Neither gateway needs a native MQTT claim to work well for local HTTP / Home Assistant use. Sensor channel limits vary by device and firmware — do not treat one number as universal.
Cluster context: Smart Weather · Ethernet · Local data.
Who this guide is for
- You are picking an Ecowitt hub, not comparing full weather-station brands.
- You read the Home Assistant or Ethernet guides and need GW2000 vs GW3000 clarity.
- You want to avoid confusing GW2000 (gateway) with GW2001 (gateway + WS90 bundle).
GW2000 vs GW3000 at a glance
| Feature | GW2000 | GW3000 |
|---|---|---|
| Role | Gateway | Gateway-only |
| Wi‑Fi | Yes | Yes |
| Ethernet | Yes | Yes |
| Outdoor sensors | Sold separately (or included in GW2001 bundle) | Sold separately |
| microSD local logging | Not the GW3000-class storage pitch | Yes (card usually separate) |
| Local data / LAN path | Via gateway | Via gateway |
| Typical buyer | Start-from-scratch / simpler LAN hub | Expandable / advanced gateway setup |
| Home Assistant | Supported gateway | Supported gateway |
Expansion and channel capacity vary by sensor family and firmware — verify Ecowitt compatibility charts for your mix.
GW2000 vs GW2001
- GW2000 = the gateway hardware (Wi‑Fi + Ethernet).
- GW2001 = commercial bundle that typically pairs GW2000 + WS90.
- Atmosiva’s /weather-stations/ecowitt-gw2000 URL presents the GW2001 Amazon listing for buyers who want one kit.
The WS90 has no Wi‑Fi or Ethernet; LAN and local data come from the gateway inside the bundle (or any compatible gateway you already own).
Which gateway to buy
Choose GW2000 / GW2001 when:
- You want a WS90 bundle and simpler start
- You need Ethernet + local access without assembling parts
- Home Assistant or another LAN dashboard will store long-term history
Choose GW3000 when:
- You already own sensors or plan a modular Ecowitt build
- You want microSD logging at the gateway
- You prefer a larger / advanced gateway setup and will buy outdoor arrays separately
Product pages: GW2001 / GW2000 page, GW3000, WS90.
Home Assistant notes
Both gateways appear in Home Assistant’s Ecowitt integration list and Ecowitt’s official HACS documentation. Patterns: local HTTP push (built-in) or local HTTP API pull (official). See Home Assistant guide for buying across brands — this page stays gateway-focused.
MQTT is not required for these mainstream paths.
Local data
Both hubs provide the local data path for paired Ecowitt sensors on your LAN. Sensor RF region must match the gateway. Architecture across brands: local data guide.
GW3000 microSD storage
GW3000’s main documented differentiator versus GW2000-class hubs is onboard microSD logging (card typically not included). Useful if you want short-term history at the gateway when a dashboard is offline. If Home Assistant or another DB is your only historian, GW2000 / GW2001 is often enough.
Atmosiva has not independently measured retention — confirm Ecowitt specs for your SKU.
FAQs
See frontmatter FAQs. Firmware updates can change capacity charts — re-check Ecowitt docs after purchase.
