ʻAʻole ʻōniʻoniʻo ka pointer piʻi piʻi, haʻalulu ka pointer pressure gauge i ka wā e hana ai, ʻAʻole hiki ke hoʻoheheʻe ʻia ka nila kaomi ʻana i ka wā ʻaʻohe kaomi, hōʻike ʻana i ke ana kaomi pololei ʻole.
Nui nā hoaaloha e nīnau inā he ʻano like ka thermocouple a me RTD, ʻaʻole like ka pane pololei. ʻOiai ua hoʻohana ʻia nā thermocouple a me RTDS ma ke ʻano he mau mea ʻike wela, ʻokoʻa ko lākou mau kumu, kumu, a me nā pae wela.