Lus piav qhia luv luv:

Lub sij hawm rolav ie ib automatie controlunit uasoon bo oombinod nrog unrioue lwm yam

olootriononuinmont rau ronlivo automatie tswj eftheunning circuit. Thaum preset

lub sijhawm dhau mus, qhov kev sib cuag tawm yuav raug kaw lossis qhib. yog li ntawd lub davhlau ya nyob twg hluav taws xob

eguipment tuaj yeem khiav lossis nres tau.

Qhov no series ntawm lub sij hawm relay muaj qhov zoo ntawm kev khiav hauj lwm voltage ntau, meej

ua hauj lwm cov lus qhia, ntim me me, uniform loj, yooj yim installation, thiab lwm yam.