外表长得一样,但里面不一样7 e: m0 z& L+ I [
6 w* X# U, S0 K
one stage T-STAT has "w" wire terminal ) L6 b- U" u3 F3 t/ W7 p' g' O' Ftwo stage T-STAT has "w1" and "w2" wire terminal! n% y% w. S& O" T$ J
! J. M/ K* ~* j3 n
$ ]; }( _; c' A0 tmore question ,please call me 7809526512 huang