The Oregon Scientific THGR328N sensor is compatible with the AWS888, BAR323, BAR933, BAR988 and BAR998 weather stations providing remote temperature and humidity data. The THGR328N is designed to be table or wall mounted to enable effective positioning. It is also splash proof so that outside data can be gathered. Sensors can be placed up to 100 metres from the base unit and up to 5 sensors can be used by the above weather stations. Temperature is measured between -20C and 60C and humidity is measured between 25% and 95%