Raws li qhov tseem ceeb ntsuas rau kev ntsuas dej siab, siab kawg kev xaiv ntawm nws txoj kev ua haujlwm, ntaus, thiab cov kev qhia tshwj xeeb. Mechanical siab gauges (xws li cov neeg muaj cov ntaub ntawv qhia txog caij nplooj ntoos hlav (siv siab sensor Hom Hom muaj xws li tus qauv (0.1 {{}} {{{{} {% yuam kev) rau chav kawm 0.1 (± 0.1% yuam kev). Cov kev xaiv tseem ceeb uas muaj ntau yam sib xyaw (piv txwv li, 0 {{}} Qhov feem ntau siv rau boiler kev soj ntsuam), thiab ib puag ncig compatibility (tawg-pov thawj ntsuas ex dⅱct6). Lub hauv paus qauv yuav tsum ua kom haum rau kev teeb tsa kev teeb tsa: Cov hlau radial (roj carbon steel) muaj cov teeb meem ntawm cov teeb meem tsis yog-fementic teeb teeb meem.
