The built-in carbon monoxide sensor allows the unit to monitor the garage or shed for any amount of CO in the air.
To help the user understand the unit’s process an indicator light has been added.
The indicator light has three (3) different display modes.
 | Double Blink Mode: In order to function properly, the CO sensor is required to warmup, during these warmup sequences the indicator light will blink twice. On initial start-up, the unit will warm up for up to 48 hours this is required for proper functionality. |
Single Blink Mode: If the unit is not in a warmup sequence and the sensor detects a low level of CO, the indicator light will blink and the Humidex will also try to reduce the quantity of CO by going into high speed mode. |  |
 | Solid Light Mode: If a higher level of carbon monoxide is detected the CO indicator will turn a solid color. During this time the humidex will run at a high speed to try and reduce the CO levels |
Note: The device cannot guaranty that it will be able to evacuate the CO from your garage or shed.
It should also be noted that the Humidex device cannot replace a certified CO measuring device.
50 PPM will trigger the fan to kick in higher.