外表长得一样,但里面不一样1 [/ S# ~* u7 Y. w2 i
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one stage T-STAT has "w" wire terminal$ J) B4 L. N# A) m4 h9 n
two stage T-STAT has "w1" and "w2" wire terminal $ k+ C0 @' l E , S7 I0 ]4 w+ f: }4 Z. a/ ] - |1 y' }5 t) [' e! Nmore question ,please call me 7809526512 huang