Tuya WIFI CO PPM Detector Warning Siren Carbon Monoxide Detector with LCD Indicator Safe Sensor Home Security Protection

Good luck with your favorite purchasesAbout the product:

All indicator lights briefly turn on and then turn off when power on. The green indicator light flashes every second, the screen shows a 120-second countdown.the flashing stops after 120 seconds,then the screen shows "0 ppm." The green indicator light flashes once every 40 seconds.

When there is malfunction with CO sensor, the orange indicator light flashes twice every 40 seconds, the buzzer beeps twice, and the screen shows "ERR."

When press the test button the green and yellow lights keep turn on , the red light to blink, and the buzzer to sound a beep.

When the CO concentration in the environment exceeds the set value (128ppm), the red indicator light blinks, and a continuous beeping sound until the screen shows "0 ppm" then stop alarm ( APP receives alarm message if network connected success)