Features: It is better to equip a thermometer for fish for tank,which will be convenient to observe the living condition that fish live. This kind of thermometer can measure the temperature of indoor and fish for tank meanwhile. Clear reading,large range,high accuracy,real-time measurement,LCD display screen. It can switch celsius to fahrenheit on temperature display. Easy to install: Adhesive sticker on the back of thermometer can stick on the fish for tank. Excellent for those who have fish for tank. Constantly pay attention to the living condition of fish or shrimp. Specifications: Material: Plastic Type: Indoor/Water Temperature Indoor Temperature Range: -10 to 50 Degrees Celsius Water Temperature Range: -50 to +70 Degrees Celsius Color: As pictures shown Power Supply: 1 x Button Battery(Included) Size: One Size 7.8x4.2cm(3.07x1.65in) Note: 1.Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1 x Aquarium Thermometer