Ecowitt WS90 7-in-1 Weather Sensor, Outdoor Temperature/Humidity/Rain Gauge/Wind Speed and Direction/UV Index/Solar Radiation - Just Sensor, Could NOT Be Used Alone - 915 MHz

This unit replaces a ten+ year old Oregon Scientific station that over the last five years had steadily decayed. This HP2564 is far better in every respect. The package came with the WS90 all-in-one sensor ultrasonic anemometer/vane, piezoelectric rain gauge, light and UV sensor and thermo-hygrometer; the HP2560_C color display; a ring of bird deterrence spikes; and two paper manuals. The all-in-one sensor is compact and easy to set up. I installed two AA lithium backup batteries. I have it mounted on a PVC pole. I did not opt for the A/C heater module. I can't swear by the rain gauge, but it seems close to nearby station rainfall readings.The display is bright (brightness is adjustable) and easy to read. My unit is about 50 feet and two walls away from the sensor with all-bars on the WIFI icon lit up. It also comes with an interior thermometer and hygrometer, and micro-SD port, 32GB max FAT. The micro-SD card continually outputs readings in CSV format which are easy to analyze in Excel or similar spreadsheets and the card will take a long time to fill up. There is no battery backup (although the micro-SD card could be considered an approximation of same), so get a small UPS for the AC input if that's an issue. It's a little wonky to initialize, although the paper manual is adequate and online resources a little better. However, once you get used to the cumbersome sequential menu drill-down and value setting system (i.e., no touch screen nor direct go-to-setting shortcuts), it becomes quite usable. A cool feature is that if the unit is in a bedroom, it can be scheduled to go dark and then re-enable at certain times (or can be manually darkened and re-enabled at any time). This might also be useful to prevent long-term screen burn-in, but the manual does not say that's a problem with this kind of display.Setup of WIFI and communication with the optional internet Ecowitt.net service is straightforward. I have not tried linking to Weather Underground.The Android app is easy to use, showing current readings. It also shows graphs of various measurements over different time intervals, including yearly.At this point, my only fear is that as opposed to systems with separate sensors, with long-term use if part of the all-in-one sensor fails, then the whole thing must be replaced unless repair is possible. Otherwise, this is an excellent consumer-grade weather station.

I wanted a weather station to add to my Home Assistant, mostly just for fun. But after using it for a couple weeks now, I'm impressed with how accurate it is. I have it mounted about 20 feet in the air, and I was concerned about the nearby trees (40'-60' Oaks and Poplar all around our yard, some within 50' of the station) distorting wind readings, but when I have compared with our nearby airport, they consistently match. The rain readings also matched our manual rain guage. So, whatever solid-state magic ECOWITT is using is very impressive. Relative pressure also matches the airport (just looked up my elevation online, and entered the pressure offset in the ECOWITT configuration web page).Integration into Home Assistant was very easy, I'm using ApexCharts and WindRose cards, which give very appealing displays for all the data I want (temp, humidity, dewpoint, wind speed & direction, pressure, even sun light).And by chance I installed the "base station" inside my chicken coup (just to be nearer the weather station), and found the precision and finer granularity of the temperature tracking much better than the YoLink X3 I was using - showed me a problem with the previous thermostat. So, I ended up replacing that too. Wish I would have started with the ECOWITT and never bought the Yolink or previous thermostat control (now just using a WiFi switch and an HA automation, much more flexible).

Let's start with this: this is the best home weather station I've had to date. Excellent range on the sensors, clear bright display packed with information, easy mating with add-on sensors. I really like most of it. But Christmas on a crutch, the instructions are weak. They have a youtube as well but personally I would rather read. Still, with minimal diligence one can get it up and running.Now, the bad part. Setup is accomplished by scrolling through menus with up and down arrows like a 1984 Atari game console. Once you get and download the app you expect to breeze through with mouse and keyboard. Hah! The app offers an even better display than the base station but no additional functionality. This isn't the end of the world; once it is set up it is set up. But it is kind of cheesy.Finally, I have doubts about the haptic rain gauge. It has been bone dry since I bought it so I don't have empirical data to share. I'll compare it with an old fashioned accumulator and I'll let you know. The good news is that Ecowitt offers a tipping bucket rain gauge as an add-on. Other commenters have b*tched about its accuracy in heavy downpours but this is a homeowner system. If you want NIST accuracy you're shopping the wrong price point.In summary, this is an elegant device for the weather enthusiast or home gardener. I have mine mated with 8 WH51 soil moisture sensors that give me a quick picture of my drip irrigation system in various beds. I haven't yet figured out how to calibrate the atmospheric pressure manometer - mine is off by a mile. But for now write that off to reviewer incompetence.

Setup for the HP2560_C was very easy if you have a cell phone and router near. The steps to do the setup manually take patience and some tech savvy. It was impressive to see how the station and sending unit work together to present a clear picture of nearby conditions.I mounted the WS90 sensor unit on a piece of 3/4" pvc. Perfect fit.This system replaced an earlier model of weather station by Ecowitt that had given long term service but finally expired. It far surpasses the previous one in quality of data presentation and in ease of startup. Recommended to weather buffs.