dual-optical smoke sensor

Wanlin Fire - China source manufacturer of 3-in-1 smoke detector. Smart fire safety export supplier recruiting global distributors and partners: smoke alarms, heat, CO, gas detectors, manual call points, sounder-strobe units, control panels and NB-IoT / LoRa fire monitoring. OEM, ODM, private label, model-level certification transparency. Contact +8613261677···