Hi I have build my MK138, and already tried it out. So long it has been working pretty good. For one thing that remains is the temperature sensor. I want to build a small greenhouse no larger than 1m^3 and I want a good sensor to get the temperature right. I find thermistor is working pretty good(I haven’t compared it yet with the real temperature sensor), but what I don’t know is if it is good enough for a working greenhouse, or should I buy/make the real temperature sensor.(?)
Should be fine when kept dry…