Iyo WP421A yepakati uye yakakwira tembiricha yekumanikidza transmitter inounganidzwa nekunze yakakwira tembiricha isinganzwisisi zvinhu, uye sensor probe inogona kushanda zvakatsiga kwenguva yakareba pakupisa kwakanyanya kwe350 ℃. Iyo laser inotonhora welding process inoshandiswa pakati pepakati nesimbi isina simbi goko kuti inyungudutse zvachose kuita muviri mumwe, kuve nechokwadi chekuchengetedza kweanotapurirana pasi pekushisa kwakanyanya. Iyo yekumanikidza musimboti we sensor uye iyo amplifier wedunhu yakavharirwa nePTFE gaskets, uye singi yekupisa inowedzerwa. Iwo maburi emukati ekutungamirira akazadzwa nepamusoro-kushanda kwemafuta ekudzivirira zvinhu aluminium silicate, iyo inodzivirira zvinodzivirira kupisa uye inovimbisa kukwidziridzwa uye kushandura chikamu chedunhu basa pakupisa kunobvumidzwa.