
Ecowitt WS90 Haptic Weather Sensor Array
The WS90 is a genuine leap forward in consumer weather sensing, replacing fragile moving parts with haptic and ultrasonic technology for more reliable, lower-maintenance readings.
Overview
It's an excellent choice for hobbyist meteorologists and smart home enthusiasts who want accurate, durable data without the upkeep of traditional anemometers and tipping buckets, provided you're willing to pay a premium and already have (or plan to buy) a compatible Ecowitt display console.
The Ecowitt WS90 is an all-in-one outdoor weather sensor array built to replace a cluster of traditional mechanical instruments with a single, robust unit. Instead of spinning cups for wind speed, a vane for direction, and separate tipping buckets for rainfall, the WS90 uses an ultrasonic sensor to measure wind speed and direction with no moving parts to wear out, jam, or require lubrication. This haptic approach also means fewer failure points caused by dust, insects, or ice buildup, making it especially reliable in harsh or variable climates.
Specifications 5 readings
Score breakdown
Editorial sub-scores out of 10. Overall Vane Vial score: 4.5 / 5.
Pros & cons
+What we like
- No moving parts means less maintenance and failure points
- Supercapacitor avoids battery replacement in most climates
- Accurate ultrasonic wind readings even in light breezes
- Compact all-in-one design simplifies installation
- Piezo rain sensor measures light rain and intensity well
- Solid build quality for outdoor exposure
–What to consider
- Higher price point than traditional tipping-bucket stations
- Requires compatible Ecowitt gateway/display sold separately
- Supercapacitor performance can dip in prolonged low-light winter conditions
- Firmware updates occasionally needed to fix bugs
- Mounting pole and hardware sold separately in some bundles
Key features
- Haptic rain sensing (no moving parts, no tipping bucket)
- 7-in-1 all-in-one sensor: wind speed/direction, rain, UV, light, temperature, humidity
- Ultrasonic wind speed and direction measurement
- Piezoelectric rain sensor eliminates clogging and debris issues
- Built-in solar panel with supercapacitor power backup (no battery degradation)
- Compact single-unit design replaces multiple separate sensors
- Compatible with Ecowitt GW2000/GW1100 gateways and WS View Plus app
- Ready for Weather Underground, Ecowitt.net, and Weathercloud uploads
Full review
Alongside wind data, it measures temperature, humidity, solar radiation, UV index, and rainfall using a piezoelectric rain sensor that detects precipitation through vibration rather than physical tipping mechanisms, improving accuracy in light rain, heavy downpours, and even during freezing conditions where traditional buckets can fail. Built for durability, the WS90 features a rugged, weatherproof housing designed to withstand extreme environmental stress, including high winds, hail, and temperature swings.
Its solar panel and built-in supercapacitor allow it to operate without relying on disposable batteries in most conditions, giving it a longer service life and reduced maintenance needs, which is a major advantage for users who mount their station in hard-to-reach locations like rooftops or remote properties. The sensor array transmits data wirelessly to compatible Ecowitt consoles or gateways, such as the GW2000, feeding real-time readings into Ecowitt's app or third-party platforms like Weather Underground, Ecowitt.net, and Home Assistant integrations.
This flexibility makes it a strong fit for hobbyist meteorologists, agricultural monitoring, and smart home weather tracking alike. Overall, the WS90 represents a shift toward simplified, low-maintenance weather monitoring without sacrificing measurement precision. By consolidating multiple sensor types into one compact, solar-powered unit with no moving mechanical parts for wind or rain detection, it reduces the typical upkeep burden associated with traditional weather stations while improving long-term reliability.
For users seeking accurate, continuous environmental data with minimal intervention, the Ecowitt WS90 offers a modern, durable solution that fits seamlessly into both casual home weather setups and more serious environmental monitoring applications.
The WS90 is a genuine leap forward in consumer weather sensing, replacing fragile moving parts with haptic and ultrasonic technology for more reliable, lower-maintenance readings. It's an excellent choice for hobbyist meteorologists and smart home enthusiasts who want accurate, durable data without the upkeep of traditional anemometers and tipping buckets, provided you're willing to pay a premium and already have (or plan to buy) a compatible Ecowitt display console.
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