Radon testing device(s) should be placed in the lowest level of the home suitable for occupancy. This means testing in the lowest level (such as a basement), which a buyer could use for living space without renovations. The test should be conducted in a room to be used regularly (like a family room, living room, playroom, den or bedroom); do not test in a kitchen, bathroom, laundry room or hallway. Usually, the buyer decides where to locate the radon test, based on their expected use of the home. A buyer and seller should explicitly discuss and agree on the test location to avoid any misunderstanding. Their decision should be clearly communicated to the person performing the test.
If you have a ladder you carry around from project to project, it often takes a couple of tries to find the right spot to grab it so it balances in a horizontal position. To solve this trial-and-error handling, do this: Grab one side and adjust your hand until the ladder balances. Then put a dab of bright paint or tape on that spot. Then you will always know exactly where to grab the ladder to move it.