Carbon Monoxide monitors have been around for years, but are one of those gadgets that I never gave very much thought too for a very long time. I knew they existed, yet my foolish supposition that the danger is so remote that it wasn't worth bothering about is exactly the same as the thoughts of those who have tragically suffered and died through exposure to high levels of the toxic gas. Although the risks are minimal, they do exist. What is Carbon Monoxide? *********************** Carbon monoxide, (CO) is what is commonly known as the silent killer, it is a colourless, odourless gas given off by incomplete combustion of all carbon containing ...  Read the complete review