The KooPower Wine Thermometer is well protected in an extremely high-quality and stylish box delivered. Even the thermometer looks very chic and makes a high quality impression. The KooPower Wine Thermometer has a gutlesbare, permanent LCD temperature display. Also on display are temperature proposals for Champagne, white wine, rose, red wine and port wine. The wine thermometer is simply inserted instead of a closure or cork on the wine bottle. The closure fits all standard wine bottles and forms an airtight seal. The thermometer can also be used for bottles of fermenting wines / musts, since it has a valve and the resulting pressure to escape. Establishments, the wine thermometer with a replaceable LR44 button cell. How long does the battery I can not say at this time. From the KooPower Weinthermometer I absolutely loved it and not hesitate to recommend. Due to the very successful packaging, the thermometer is also suitable as a gift.