This aquarium thermometer is made of , which can withstand the use. Features the premium and creative design, which has high durability, not easy to deform. Fine workmanship, it ensures the practicality. Features - Color: Black - Material: ABS, LCD - Size: About 11.80X3.00X2.85cm/4.64X1.18X1.12inch - Time display range: 1∶00-12∶59 - Temperature range: -50 degree centigrade (-58°F) ~ +70 degree centigrade (158°F) - Accuracy: ±1 degree centigrade - Resolution: &gt; -20 degree centigrade for 0.1 degree centigrade <=-20 degree centigrade for 1.0 degree centigrade - Power: 1.5V 7#alkaline battery(Not Included) - Comes with a large screen that is easy to read clearly and accurately from a distance. - It is not easy to deform, which brings you a lot of convenience. - You can give it as a present to your friends who like to keep fish, they will like it. - It is well-made of premium and sturdy materials, and practical for using time. - Mini-compact, small size the tank wall, easy to use. Package list: 1 x Temperature clock display 1 x Thermal Detector 1 x Specification