I have the sensor for temperature and humidity showing inside temperature in my greenhouse. It works fine, but I also want to connect an outside sensor to show the outside temperature. especially during early spring when I want to connect a heater inside I want to see the difference in outside and inside temperature. Please suggest a sensor and please show me how to connect it.
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hello, You can use the DS18B20, which normally comes waterproof. You can have a look at the project hardware page: https://hydrosysblog.wordpress.com/hardware/
I also remember there are other posts in this forum which speaks about it, you can make a quick search in this forum.