DescriptionIf you are looking for a professional and convenient fish tank thermometer, then your search is over here. Thats because our product can meet your need. Adopted of premium material, it is practical and durable for long time use.Features-Color: Green -Material: ABS -Size: 4.80X4.80X1.20cm/1.89X1.89X0.47in -Manufactured with premium material, durable and practical to use. -Clear temperature degrees with easy-to-read screen display. Small size, compact design, easy to use. -The excellent workmanship of our product will bring you a good using experience.-Great for aquarium or any place you want to monitor the temperature. -With button battery design, with low energy consumption, and long standby time.Specification-Measurement Error: Below 0.5C or Above 0.5C -Precision Display : 0.1C -Measuring Range : 0-60C -Measurement Period : 5 Seconds/Time -Battery: 1 x 3V Lithium Manganese Button Battery -Standby Time: About 5 years