Just an update on this.
I found out it's a Meade TE923W weather station.
It's supposed to come with these things:
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https://www.manualslib.com/manual/627228/Meade-Te923w.html?page=3#manualIntroduction
Thank you for selecting the Meade Professional Weather Station with Remote control. This
compact and easy-to-use product features a wide variety of time and weather data, such as
precise atomic time, perpetual calendar, air temperature, relative humidity, barometric pressure,
wind speed and direction, rainfall, UV levels and etc.
In this package you will find:
One Main Unit (receiver) (TE923WD)
One IR Remote Control (TS607)
One Rain Gauge (remote rain sensor/transmitter) (TS906)
One Anemometer (remote wind sensor/transmitter) (TS805)
One UV (ultraviolet) sensor (remote ultraviolet sensor/transmitter) (TS704)
One Five-Channel Temperature & Humidity Sensor (transmitter) (TS34C)
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* I ordered both LaCrosse TX23WCA wind cups, and a Davis Instruments 7905L wind cups. Hopefully one of them will fit with the Meade anemometer.
* I ordered a TS34C humidity sensor, since I was missing that.
* I was also missing the UV sensor. I called Meade, they told me to call Honeywell. I called Honeywell, they gave me Meade's number. When I told Honeywell that Meade was the one that referred me to Honeywell, they then got on a conference call. When Honeywell returned to me, Honeywell said they'd escalate this and I'd hear back either via phone or email within 48 hours.
Over a week later, and I didn't hear anything back.
I called Honeywell again. They then got on a conference call with Meade, and said Meade would help me. They then transferred me to Meade. Meade said they don't have any, but that Telescope Warehouse might.
I then called Telescope Warehouse, and someone said the parts guy would hopefully get back to me by the end of today.