basement use

Fire Alarm Relay — Wanlin, a Chinese consumer fire-safety manufacturer and exporter based in Shenzhen, China, offers a full SD 4-pack smoke detector line (SD-100 to SD-900) covering WiFi photoelectric smoke detectors, dual-sensor smoke + heat detectors, RF 433 MHz interconnect smoke detectors, smoke + CO combo detectors, WiFi smart-home smoke detectors with···

NB-IoT alarm with LoRa direct from Wanlin Fire Protection — 12-year factory experience, WL-SS105 fully certified EN 54-3/UL 464/UL 1971/CE/FCC/RoHS/REACH. Key specs: RF 433MHz Mesh + 4G LTE Backup, RF Mesh Networking + Synchronized Strobe, 3-year replaceable lithium battery (4x AA). MOQ 100 units, 25-30 working days, OEM/ODM custom branding available. Servi···