La Crosse Technology, Ltd. Page 4Remote TransmittersPower requirements 2-AAA batteries power the Thermohygro transmitter 2-AA batteries for the Rain transmitter 2-AA batteries for the Wind transmitter We recommend Alkaline batteries for the transmitters. You may choose to use lithium batteries for temperatures below 32°F (0°C).Compatible outdoor transmitters TS21 Thermohygro TS805 Wind TS906 Rain The above 433MHz transmitters will read to this weather station.Dashes shown for outdoor temperature/humidity Dashes means the connection is lost between the weather station and the outdoor transmitter. Batteries often resolve the connection. Distance/Resistance can cause loss of connection between the transmitter and the weather station. Reorientation of the weather station 90 degrees towards the thermohygro transmitter may providebetter reception by the antenna. Complete a factory restart.Inaccurate outdoor temperature/humidity The thermohygro transmitter reads the environment. When the transmitter reads high during the daybut not at night it is a mounting problem. Side-by-side test: Bring the thermohygro transmitter in the house and place it next to the weatherstation for 2 hours. Compare indoor and outdoor temperature. The temperatures should be within 4 degrees to be withintolerance. The humidity should be within 10% to be within tolerance. If the transmitter reads correctly when next to the weather station, try a different location outside. Look for heat sources such as sunlight, door or window frames, or reflected heat.Intermittent outdoor temperature/humidity RF (radio frequency) communication may come and go occasionally. This can be normal in someenvironments (e.g. moister climates). If transmitter signal is lost, please wait 2-4 hours for the signalto reconnect on its own. Move the remote transmitters to a location closer to the weather station. Indoor distance test: Please complete the Restart with transmitters and weather station 5-10 feetapart and inside to establish a strong connection. After 15 minutes if there is a reading in the outdoor temperature area, move the transmitter to anotherroom with one wall between the transmitter and the weather station. Observe to see if the remotereadings remain on consistently for 1 hour. If the remote reading remains on while in the house then it is likely a distance/resistance issue. Move the transmitter to different locations outside to find a location where the remote readings willhold. Distance/Resistance can cause loss of transmitter signal. Check Batteries.Thermohygro transmitter fell, and does not work The fall may not have caused internal damage if there is no physical damage. A thermohygro transmitter that has fallen into a puddle or other standing water or snow may havewater damage.