Ecowitt Wireless Lightning Detector Sensor, Accessory Sensor for Weather Station Ecosystem, WH57

【Lightning Detection Sensor】: Detects lightning bolts and storms within 25 miles (40 kilometers) the data can be viewed on our free WS View Plus or Ecowitt App after the WiFi configuration(requires a GW1100/GW1200/GW3000 gateway(sold separately) (Accessory Only, Can Not Be Used Alone) 【Live Data on APP】: Requires a GW1100/GW1200/GW3000 WIFI gateway(sold separately) to connect to WiFi, after the WIFI configuration, you can monitor number of strikes daily, and the time & distance of the last strike detected within a 25-mile radius of your location on the Live Data page of the WS View Plus or Ecowitt app (requires the gateway and your phone is using the same Wi-Fi network). 【Graph & History Records on Ecowitt Weather Server】: Supported to upload to our free Ecowitt Weather server(ecowitt.net) to view the lightning strikes graph and download the history records on the website; it's recommended to add a shortcut of the website on the home screen of your phone for quick access Receive Email Alerts from the Ecowitt Weather Server; Remote monitoring with smart phone, laptop, or computer by visiting the websit. Battery power level display on the WS View Plus App & battery alert function on the Ecowitt Weather Server. Includes 1X Solar Radiation shield + 1X Mounting arm Installed outdoor in free open area for better detection. If false triggering is detected, please move around the sensor until no false lightning detected. Indoor use is not allowed!! Please use rechargeable batteries; standard batteries and lithium batteries may cause the WH57 to trigger incorrectly due to their high voltage.