Yuav ua li cas rau nruab video intercom doorbell
Jul 10, 2021
1. Ua ntej teeb tsa, cov cuab yeej sib xws tau npaj tiav, xws li cov ntsia hlau, ntsia hlau, daim hlau, thiab lwm yam. Yog tias lub qhov rooj ntawm lub tsev thaum xub thawj muaj lub qhov peephole, koj tuaj yeem siv lub koob yees duab lub qhov rooj kaw qhov rooj xwb. Lub qhov (socket) txuas nrog.
2. Muab chav nyob sab nraum zoov, xyuas kom tseeb tias txoj haujlwm raug, txuas nrog chav nyob sab hauv, kaw qhov qis kawg, thiab kho qhov nqes qis nrog cov ntsia hlau kho.
3. Thov txheeb xyuas tom qab kev teeb tsa kab tiav. Ntxig qhov thaiv ntawm chav nyob sab hauv tsev thiab lub rooj thaiv kab thaiv rau hauv qhov chaw sib txuas xov tooj sib txuas, thawb mus raws tus nqaj, thiab thaum kawg kho nws nrog cov ntsia hlau los ntawm sab xis.
