weather station, digital indoor outdoor thermometer hygromete, home weather forecaster station, wireless temperature and humidity monitor with remote sensor, backlight, time, alarm clock amir <p><b>about channel:</b></p> <p>the channel function is for those who has 2 or 3 transmitters (we only provide 1 weather station </p> <p></p> <p>and 1 transmitter by now) and set on different places to get different info. people who has 1 </p> <p></p> <p>transmitter can only press the channel button on the weather station to get the info correct.</p> <p></p> <p><b><br></b></p> <p><b>note:</b></p> <p>1.in case of faint display or short incept distance, please replace the batteries</p> <p>2.when temperature under -20°c, move the transmitter indoors and put the wire probe outdoors</p> <p>3.batteries are not included. (require 5 aaa batteries, 3 for the weather station and 2 for the </p> <p></p> <p>transmitter)</p> <p></p> <p><b><br></b></p> <p><b>package contents:</b></p> <p>1x weather station</p> <p>1x transmitter</p> <p>1x user manual</p>