National geographic weather station 265nc manual

National Geographic radio controlled weather station Model # 265nc transmitter will not communicate between station and the transmitter? There is a battery in both the transmitter and receiver. If either one of them is weak then it won't sync. 265NC Touch Screen Home Weather Station With PC Software National Geographic 264NE Clock User Manual Extech Instruments WTH600-E-KIT Wireless Weather Station Kit Manuel utilisateur Manuel - PCE Instruments pce-france.fr Aercus Instruments WS1093