Sally the Safety Pig Water Temperature Warning Device Sally the Safety Pig is an early warning device for water temperature. Simply set Sally to your desired temperature... place her tail in the tub or any water basin and fill with water. When the water temperature reaches or exceeds the temperature set, Sally squeals to alert you. Batteries included Water Resistant Construction Temperature ranges from 99 to 120 F Includes: 1 x Sally the Safety Pig Water Temperature Warning Device Additional Details ------------------------------ Product description: Sally the Safety Pig Water Temperature Warning Device Sally the Safety Pig is an early warning device for water temperature. Simply set Sally to your desired temperature... place her tail in the tub or any water basin and fill with water. When the water temperature reaches or exceeds the temperature set, Sally squeals to alert you. Batteries included Water Resistant Construction Temperature ranges from 99 to 120 F Includes: 1 x Sally the Safety Pig Water Temperature Warning Device