ʻO XDB307-2 & -3 & -4 mau mea hoʻouna kaomi i kūkulu ʻia no nā noi refrigeration, me ka hoʻohana ʻana i nā cores sensing ceramic piezoresistive i waiho ʻia i loko o nā pā keleawe. Me ka hoʻolālā paʻa a me ka hoʻohana ʻana, a me kahi nila valve i hana ʻia no ke awa kaomi, e hōʻoia kēia mau transmitters i ka hana uila maikaʻi loa a me ka paʻa lōʻihi. Hoʻolālā ʻia e hoʻokō i nā koi koi o nā compressors refrigeration, kūpono lākou me nā refrigerants like ʻole. Hoʻohana nui ʻia i ka ea a me ka ʻoihana refrigeration, hāʻawi ka transmitter i nā ana kaomi pololei a hilinaʻi.