according to the current standard of fireproof controller，we develop the products，adoptting american microcomputer chips 。the sensors which can respond to smoke vapour and temperature 。the signal is controlled by a/b/c，the thr...
according to the current standard of fireproof controller，we develop the products，adoptting american microcomputer chips 。the sensors which can respond to smoke vapour and temperature。the signal is controlled by a/b/c，the thre...