smoke detector tester auto zero

NFPA 72 section 10.4 testing requirements direct from Wanlin Fire Protection — 12-year factory experience, WL-ST700 smoke detector tester certified CE/UL 268A/EN 54/NFPA 72/BS 5839/AS 1851. Key specs: 4G Cellular + Cloud Platform + Remote Test Control + Multi-Site Management + AI Scheduling, 4G LTE + Cloud Dashboard + Mobile APP + SMS/Push/Email Alerts + AP···