Tsohle li qala ka sensor.Ho fapana le thermometer e tletseng metsi le thermometer ea bi-metal, thermometer ea dijithale e hloka sensor.
Li-sensor tsena kaofela li hlahisa phetoho ea motlakase, ea hona joale kapa ea ho hanyetsa ha mocheso o fetoha.Tsena ke matšoao a 'analoge' ho fapana le matshwao a dijithale.Li ka sebelisoa ho nka lipalo tsa mocheso molomong, ka har'a rectum, kapa sephakeng.
Li-thermometer tsa elektroniki li sebetsa ka tsela e fapaneng ka ho felletseng le ea mochini o sebelisang mela ea mercury kapa spinning pointers.Li thehiloe khopolong ea hore ho hanyetsa ha karolo ea tšepe (bonolo boo motlakase o phallang ho eona) ho fetoha ha mocheso o fetoha.Ha litšepe li ntse li chesa haholo, liathomo li thothomela haholoanyane ka hare ho tsona, ho ba thata hore motlakase o phalle, 'me ho hanyetsa hoa eketseha.Ka ho tšoanang, ha litšepe li pholile, li-electrone li tsamaea ka bolokolohi 'me khanyetso e theoha.
Ka tlase ke thermometer ea rona ea dijithale e nepahetseng haholo bakeng sa litšupiso tsa hau:
