humidity meter การใช้

• :Buy a good humidity meter.
• Humidity meters are notoriously hard to calibrated ( unless one has a laboratory grade instrument ).
• Buy a cheap humidity meter  they are actually rubbish and inaccurate but it will make one more aware of the humidity.
• Tropical fish tanks and house plants can do a lot to offset this but a proper automatic humidifier is worth every cent IMHO . So too is an solid state humidity meter.