Ecowitt Wittboy Weather Station - Everything You Need to Know

The Ecowitt Wittboy (WS90) is a compact, seven-in-one outdoor sensor ideal for smart home users who want accurate, real-time weather data. It gathers multiple weather parameters and integrates with smart home systems via a dedicated gateway.

Sensors

The Wittboy packs in 7 sensors into one unit:

• Rainfall Sensor: Uses a haptic rain gauge to measure rainfall intensity and accumulation.
• Wind Sensor: An ultrasonic anemometer tracks wind speed and direction.
• Temperature Sensor: Monitors ambient outdoor temperature.
• Humidity Sensor: Measures ambient moisture.
• Solar Radiation Sensor: Records the intensity of sunlight.
• UV Sensor: Tracks the UV index.

Internal Heater: A built-in heat plate (optional) ensures accurate readings in cold or high-humidity conditions by preventing condensation and ice build-up. Mains power required.

Power Options and Battery Life

The Wittboy offers various powering methods:

• Battery Operation: It requires 2 AA batteries. Lithium batteries are recommended over alkaline as they provide a more stable voltage and typically last two to three times longer. In moderate conditions, alkaline batteries may last around six months, while lithium variants can reach up to 18 months.
• Solar Power: An optional solar panel can supplement battery power. The panel should be placed in a spot with ample sunlight and kept clean for optimal performance.
• Heater Power Supply: In colder climates, an external heater power supply helps maintain sensor accuracy.

Connectivity and Setup

The WS90 does not connect directly to your home WiFi. Instead, it transmits data to an Ecowitt gateway (such as the GW2000 or GW3000), which in turn connects to your WiFi router.

• Gateway Requirement: The sensor must be paired with a compatible Ecowitt router gateway. The gateway communicates via radio frequency – in UK & Europe, typically 868 MHz; in the United States, 915 MHz; and region-appropriate frequencies elsewhere.
• Pairing Process: Once batteries are installed and the sensor is mounted, follow the pairing instructions. The sensor will emit a light via its LED to confirm a successful connection with the gateway.
• Gateway to Internet: Although the sensor gathers data without an internet connection, you must connect the gateway to your home WiFi or Ethernet network if remote access is desired. This often involves connecting to the gateway’s temporary access point (e.g. at 192.168.4.1) and configuring your network settings.
• Wireless Range: In clear, line-of-sight conditions, the range can be up to 100 metres. In everyday installations, expect reliable connectivity at distances between 30 and 50 metres.

Installation and Location

Where to Locate: Mount the sensor in an open area free from obstructions such as trees, walls or windows. An elevated position, such as on a roof or a dedicated pole, is recommended to gather accurate wind, rain and solar data.

Physical Installation: Use the supplied mounting kit to secure the sensor. While a pole (purchase separately) is not strictly necessary, it helps ensure unobstructed readings and a stable setup.

Data Captured and Management

The WS90 collects a host of weather metrics (update every 8.8 seconds):

• Rainfall (intensity and total)
• Wind speed and direction
• Outdoor temperature
• Relative humidity
• Solar radiation
• UV index

Additional information such as battery level and signal strength can also be monitored. Data is accessed via the Ecowitt app, which displays real-time and historical data once the sensor is paired with the gateway. Direct connection to the sensor is not possible; all data is routed through the gateway.

Smart home integration (e.g. Home Assistant) allows you to create automation routines, for instance adjusting garden irrigation based on rainfall levels or modifying home heating settings according to external temperatures.

Conclusion

The Ecowitt Wittboy (WS90) weather station is a practical and flexible tool for those keen to bring detailed outdoor weather data into their smart home systems. Its integrated array of sensors, versatile power options, and dedicated gateway connectivity ensure reliable measurements. With proper installation—using an unobstructed, elevated location and following simple pairing and configuration steps, the WS90 offers real-time data that can drive various home automation routines.