Masu gano yanayin zafin juriya (RTDs), wanda kuma aka sani da ma'aunin zafi da sanyio, daidaitaccen yanayin yanayin aiki tare da kyakkyawan matakin maimaitawa da musanyar abubuwa.Ta zaɓar abubuwan da suka dace da suturar kariya, RTDs na iya aiki a cikin kewayon zafin jiki na (-200 zuwa 600) °C [-328 zuwa 1112] °F.