a second per day. These physicists have created an international standard measuringa second as 9,192,631,770 vibrations of a Cesium-133 atom in a vacuum.QUICK SET-UP GUIDE1. Insert two AA batteries into the Thermo Hygro Transmitter.2. Insert two AA batteries into the WEATHER STATION.3. Wait 5 minutes or until the outdoor temperature and humidity aredisplayed in the OUTDOOR LCD (Liquid Crystal Display).4. Wait 6-10 minutes (in ideal reception conditions) for the WWVB timeto be displayed in the TIME LCD. If the WWVB takes longer to set,you may manually set the time (see complete instructions). Or you canwait until after the weather station conducts its programmed search atthe ideal reception time period of 12:00 AM to 6:00 AM.5. Mount the units ensuring that all units are sending and receivingsignals.Note: The Thermo Hygro Transmitter transmits a signal every 3 minutes.After the batteries have been installed, the weather station will search forthe signal for a duration of 5 minutes. If there is no temperature reading inthe OUTDOOR LCD after 5 minutes, make sure the units are within rangeof each other or repeat the battery installation procedure.DETAILED SET-UP GUIDEI. BATTERY INSTALLATIONA. THERMO HYGRO TRANSMITTER1. Pull the cylindrical rain cover off the transmitter.2. Remove the battery cover (located on the backsideof the transmitter above the mounting post andbracket).3. Press the arrow and slide the battery cover off.4. Observing the correct polarity install 2 AAbatteries.5. Replace battery cover and place rain cover snuglyonto the transmitter.5