Ecowitt WH57 Lightning Sensor Overview
Accessory-only wireless lightning detector for compatible Ecowitt gateways and consoles — not a standalone weather station
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The Ecowitt WH57 is an outdoor wireless lightning detection accessory. It reports strike proximity and event data to a compatible Ecowitt gateway or console (for example GW1100, GW1200, GW2000, or GW3000). It is not a standalone weather station: there is no display, Wi-Fi, Ethernet, or Home Assistant path on the sensor itself. Ecowitt documents detection within about 0–25 miles (0–40 km), ~79-second reporting, and ~100 m / 330 ft open-field RF range. The US Amazon listing used here is 915 MHz. Lightning features are proximity/event monitoring — not official storm warnings or safety-grade alert equipment.
Specifications and compatibility notes are based on manufacturer documentation — not independent Atmosiva testing.
Known limitations
- •Accessory only — not a weather station and not a complete outdoor array
- •Amazon ASIN B0B6VYG9RF is the verified live US 915 MHz WH57 listing with solar radiation shield at build time; candidate ASIN B0897BV8QK returned 404 and was not used
- •Home Assistant, local data, cloud, Wi-Fi, and Ethernet access come from the paired Ecowitt gateway or console — not from the WH57 itself
- •Lightning detection is proximity/event monitoring for awareness — not National Weather Service alerts, evacuation guidance, or structural lightning protection
- •False positives can occur; Ecowitt recommends avoiding lithium AA cells and preferring lower-voltage rechargeable or partially discharged alkaline batteries
- •Channel/sensor limits vary by gateway/console model and firmware — check Ecowitt compatibility tables for your hub
- •Install only in safe conditions; do not service outdoor lightning gear during active thunderstorms
Pros
- + Dedicated lightning proximity/event detection for Ecowitt ecosystems
- + Documented detection range about 0–25 miles / 0–40 km
- + Pairs with common Ecowitt gateways including GW2000 and GW3000 class hubs
- + Works alongside WS90 outdoor arrays without replacing the weather sensor
- + App and Ecowitt.net history/graphs via the paired gateway path
- + Typically includes solar radiation shield and mounting arm in current retail kits
Cons
- − Cannot be used alone — compatible Ecowitt gateway or console required
- − No Wi-Fi, Ethernet, MQTT, or app connection directly from the sensor
- − Not an official emergency warning or safety-grade lightning system
- − RF frequency must match your region and hub (US listing is 915 MHz)
- − AA batteries required (not included); lithium cells can increase false positives per Ecowitt
- − No physical display included
Technical Specifications
915 MHz RF to a compatible Ecowitt gateway or console on the US Amazon listing (868/433 MHz regional variants). The sensor has no Wi-Fi, Ethernet, MQTT, or onboard app connectivity.
About 100 m / 330 ft in open areas (915 MHz US listing; regional 868/433 MHz variants exist)
Works with Home Assistant only through a compatible Ecowitt gateway. Local data access depends on the paired gateway — not the WH57 probe itself.
2×AA batteries (not included); Ecowitt recommends avoiding lithium cells if false positives occur
About 79 seconds
Compatibility & Integrations
Sensor Capabilities
Wireless lightning proximity/event detector only. Requires a compatible Ecowitt gateway or console — not a full weather station.
Smart Home
- Home Assistant: No
- Weather Underground: No
- Alexa: No
- Rachio: No
- API Support: No
Works with Home Assistant only through a compatible Ecowitt gateway. Local data access depends on the paired gateway — not the WH57 probe itself.
Connectivity
- Wi-Fi: No
- Ethernet: No
- Bluetooth: No
- Local Data: No
- Cloud Required: No
- Subscription Required: No
The Ecowitt WH57 is an outdoor wireless lightning detection accessory. It reports strike proximity and event data to a compatible Ecowitt gateway or console (for example GW1100, GW1200, GW2000, or GW3000). It is not a standalone weather station: there is no display, Wi-Fi, Ethernet, or Home Assistant path on the sensor itself. Ecowitt documents detection within about 0–25 miles (0–40 km), ~79-second reporting, and ~100 m / 330 ft open-field RF range. The US Amazon listing used here is 915 MHz. Lightning features are proximity/event monitoring — not official storm warnings or safety-grade alert equipment.
Ecowitt users who already have (or plan) a compatible gateway/console and want add-on lightning proximity awareness alongside WS90 / GW2000 / GW3000 setups
- • Accessory lightning detector — gateway/console required
- • Documented ~0–25 mile / 0–40 km detection range
- • 915 MHz US Amazon listing; ~79 s updates; AA power (not included)
- • Fits WS90 + GW2000 / GW3000 ecosystem expansion paths
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