1,[Double Glazed Glass]: The floating aquarium thermometer is made of durable glass and has been double thickened, strong and unbreakable, and using vacuum technology in the middle. 2,[Floating Design]: The glass aquarium thermometer adopts floating design, even if accidentally dropped from the hand, the thermometer can be floated by itself, easy to salvage. 3,[Accurate Measurement]: The glass thermometer can measure the temperature of the aquarium very accurately, with very little error, and the accuracy is as high as ±1°C. 4,[High Transparency]: The fish tank thermometer has a clear glass appearance with high transparency, and can see the scale and measured temperature result intuitively. 5,[Wide Measuring Range]: The transparent aquarium thermometer has a wide temperature range and can measure the water temperature from 0 to 40°C, which is suitable for most aquariums. Item Type: Floating Aquarium Thermometer Material: Glass Temperature Measurement Range: 0 to 40°C Accuracy: ±1°C 1 x Floating Aquarium Thermometer Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.