transmits both temperature and relative humidity display shows alternately temperature and humidity spare sensor for: [product name=WS7027]WS7027[/product] [product name=WS9611]WS9611[/product] [product name=WS9135]WS9135[/product] [product name=WC8167]WC8167[/product] [product name=WS9162]WS9162[/product] [product name=WS9162B]WS9162B[/product] transmission frequency: 868 MHz with IT+ technology transmission distance: ± 100 m (in open field) power supply: 2 x 1.5 V AA batteries ([product name=LR6C]LR6C[/product], not incl.) dimensions: 38.2 x 21.2 x 128.3 mm weight: ± 50 g (EN)