OSOYOO Flame Detection Sensor
OSOYOO Smart Home IoT Learning Kit:
https://osoyoo.com/2019/10/13/smart-home-iot-lesson-10-remote-monitor-smoke-sensor-status/
OSOYOO Smart Home IoT Learning Kit:
https://osoyoo.com/2019/10/13/smart-home-iot-lesson-10-remote-monitor-smoke-sensor-status/