POTTER OSYSU-EX-O Bopaki ba Ho phatloha ha Ntle ka Ntle ho Screw le Joko Valve Supervisory Switch Manual.
Ithute ka POTTER OSYSU-EX-O Bopaki ba Ho phatloha ha Kantle ho Screw le Joko ea Valve Supervisory Switch. Bukana ena ea mosebedisi e akaretsa likarolo, ho kenya, le ts'ebetso ea switch, e etselitsoeng libaka tse kotsi tsa ka ntle tse nang le molamu oa leeto o feto-fetohang le sebaka se thibelang ho phatloha. NFPA 72 e hloka hore kopi ea tokomane ena e bolokoe setšeng.