Despite maximum flattening of the lens, the eye is not able to focus the light rays further back, and on to the retina. People with short sight are not able to see distant objects clearly. Short sight or near sight mean exactly what the terms suggest. You are sighted (you can see), near (short) distance objects.
Cost of Radon Testing Kits. You can buy radon testing kits from laboratories, hardware stores or other retail stores that sell items related to home maintenance. Their cost varies, ranging from about $7 to $30, depending on the type of radon detector.Radon detectors fall into one of two general categories: short-term or long-term. Short-term devices measure radon levels for two to seven days, while the long-term devices take measurements for at least three months.heir cost varies, ranging from about $7 to $30, depending on the type of radon detector. Radon detectors fall into one of two general categories: short-term or long-term. Short-term devices measure radon levels for two to seven days, while the long-term devices take measurements for at least three months.
Radon Mitigation System Costs. If you do need a system installed in your home, expect to pay between $750 and $3,000 for a professionally installed radon mitigation system. The size of your house, the type of system you have installed, and the level of radon gas in your house will determine where you fall on that cost spectrum.