Avainsanoja: keypad, keyboard, text, information, guide, hp, questionmark, group, communication, community, joined, together, computer, printer, signs, help, technology, device

Avainsanoja: house, home, temperature, hot, warm, energy, level, degree, celsius, nobs, lights, display, device, heating, central, control, unit, setting, on, CO2, warming, plus, minus, signs, up, down, arrows