Battery powered Battery name 1 AAA battery required (not included) Rated temperature below 50 degrees Celsius Response time 1 minute Item dimensions L x W x H 13 x 4 x 3 cm About this item The electronic thermometer is small and exquisite, handcrafted Made from environmentally friendly materials, well-designed and durable. Clear LCD display, Celsius and Fahrenheit, time display function conversion function, convenient for reading data and daily use Dual meter probe to measure indoor and outdoor temperature Easy to use, high accuracy, intuitive display Widely used in refrigerators , air conditioners, freezers, fish, incubators, aquariums and greenhouses. Perfect for home, office, car and more.