Question 1

what memory size sd cards are supported?

Accepted Answer

You dont need much of a SD card. The data is all text and you're talking about a lot of text just to get to 1GB.How many YEARS of data do you want to store on the card even if you have 8 sensors.Ive got data for 7 channels since May 8th. So we're talking from May 8 - thru all of June 1Total space used on the card == 2.03MB  There are 1,000 MB in one GBLets say even 3MB for one month's data1000/3 = 333 months333 months = 27 yearsSo 1 GB card can  hold 27 yrs of data

Question 2

What is the range & accuracy of the humidity sensors ?

Accepted Answer

At the beginning all 5 of my sensors were very accurate in both temperature and humidity. One year later one outdoor sensor failed on humidity readings and was replaced under warranty. Both current outdoor sensors show too high humidity readings, the deviation is way more than 5%. Indoors sensors  also show higher humidity levels than they should, but the deviation is not that big. I have a higher end temperature/humidity meter and use it for calibration. One year ago all my sensors and the meter, brought in one location, showed about the same readings. It is not the case anymore. I live in Pennsylvania, where humidity levels are often 100% or close to it. Most likely high humidity damages the sensors, even 60% indoors humidity affects them in a negative way. 
It is a pity, I really like this unit. Maybe I should get replacement sensors or stop relying on humidity readings...

Question 3

Is it possible to write my own software to pull temperature and humidity data from the console via USB?

Accepted Answer

The USB device that shows up is the bare STM32 (STM electronics microcontroller) "HID" device, which is what shows up on the "non-programming" USB port of an STM32. What this means is that they wrote the code for the device to interact with their windows software, and that means that there is an API, but it's closed source, so no idea if it can be reverse engineered.

It's possible that someone with an oscilloscope could see what is happening during the handshake between the windows software and the device when you start the software... if someone were so inclined, and write something in python to accomplish the same handshake and API.

Unless it's encrypted, but i doubt it, at this price point.

Question 4

Is it possible to operate two different base stations each with their own sensors?

Accepted Answer

Yes, you can operate 2 base stations (consoles), but a max of 8 sensors within the RF receiving range.  Then, you can display each sensor's data readings on the 1st base station, the 2nd, or both base stations.  I am doing that now.

ASIN	B01IPOESHI
Additional Features	Alarm, Clock, Lightweight
Are batteries included?	No
Brand Name	Ambient Weather
Color	White
Connectivity Technology	Radio Freqeuncy
Customer Reviews	4.5 4.5 out of 5 stars (573)
Display Type	TFT
Frequency	915 MHz
Global Trade Identification Number	00816982017499
Included Components	Power Adapter
Is Used Where	Indoor, Outdoor
Item Dimensions D x W x H	1D x 11.4W x 1H centimeters
Manufacturer	Ambient Weather
Material Type	Plastic
Model	WS-3000-X5
Number of Items	5
Part Number	WS-3000-X5
Power Source	Battery Powered
Recommended Uses For Product	Home
Sensor Technology	Wireless
Shape	Rectangular
Specific Uses For Product	Heat Index
Style Name	Modern
Temperature Accuracy	0.5 °c
Temperature Reading Accuracy	plus_minus_0_point_5_degrees_celsius
UPC	816982017499
Unit Count	5 Count
Upper Temperature Range	60 Degrees Celsius

Ambient Weather WS-3000-X5 Thermo-Hygrometer Wireless Monitor w/ 5 Remote Sensors - Logging, Graphing, Alarming, Radio Controlled Clock

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