Features 1、Clear Display: Large LCD screen enables a clear viewing for more convenient temperature reading and measuring. 2、Accurate Work: Has small error within 1℃, the high accuracy makes it easy to maintain a comfortable water temp. 3、Practical Use: Can memory and delete the maximum and minimum temperature, can also convert and display ℉ and ℃. 4、Wide Temp Range: Comes with a wide temperature measuring range, which is from ‑40 to 70℃, and from ‑40 to 199℉. 5、Broad Utility: Allows for wide application in aquarium, fish tank and so on, very practical and simple to use. Specification Item Type: Water Thermometer Model: TA358A Measuring Temperature Range: -40~70℃/-40~199℉. Measurement Accuracy: ±1℃ (within the range of 0~70℃/32~158℉). Resolution: 0.1℃/0.1℉ Measurement Cycle: Every 10 seconds. Working Environment Temperature: -40~70℃/-40~158℉ Battery Information: 1 x 1.5V 600mAh AAA dry battery (without battery). Package List 1 x Water Thermometer