Multifunctional 3-in-1 air quality detector: carbon monoxide, temperature, and humidity detector

Function Description:

1. Press and hold the power button to turn on the device. The sensor will preheat for 60 seconds. After preheating, the display shows the real-time carbon monoxide concentration, humidity, and temperature.

2. Briefly press the audible alarm button to activate or deactivate the alarm. When activated, the device will sound an audible alarm. The display indicates whether the audible alarm is activated or deactivated.

3. Press and hold the audible alarm button for 3 seconds to put the device into standby mode. During this time, the device will operate normally.

4. A single press of the button switches between Fahrenheit and Celsius units.

5. Press the power button five times in succession to calibrate the sensor.

Specifications:

Name: Air Quality Detector

Materials: ABS and aluminum alloy

Battery: 1 x 400mAh built-in lithium battery (not included)