The Eikon is a series of low cost, single gas recyclable personal safety monitors available for the detection of either hydrogen sulfide, carbon monoxide, oxygen or chlorine. Each unit from CEA Instruments is extremely rugged, intrinsically safe with UL and other approvals, weighs about 4 ounces, and cannot be turned off accidentally. A 2-year operation is guaranteed and there are no parts or maintenance required for the duration of its operational life. Easy and unobtrusive to wear, with a patented cam grip pocket clip that keeps the unit in place, these units are resistant to water, dust and chemical corrosion.