Ko te upoko thermocouple tetahi waahanga nui o te hanganga o te punaha thermocouple tika.Ko nga upoko hononga Thermocouple me te RTD he waahi whakamarumaru, maamaa mo te whakairi i te paraka tauranga, te kaiwhakawhiti ranei hei waahanga o te whakawhiti mai i te huihuinga pūoko pāmahana ki te waea arahi.