External Aquarium LCD Digital Fish Tank Thermometer Touch Screen Temperature Meter Temperature Control For Fish Tank AccurateFeatures100% brand new and of high quality.Large screen LCD display, clear and visible temperature, convenient for observation.This thermometer can monitor water temperature fluctuations and automatically record the maximum and minimum temperature values over the past 24 hours.The Touch Screen mode thermometer can set high and low temperatures, and will automatically flash an alarm if the temperature exceeds the range.The Key mode thermometer cannot be set to high or low temperature. It will automatically record the high and low temperatures within 24 hoursCelsius and Fahrenheit can be switched freely. The temperature measurement range is wider.The temperature measurement cycle is once every 30 seconds, and the fluctuation of the fish tank water temperature is monitored throughout the day.Outside cylinder design. There is a strong adhesive on the thermometer. When using, peel off the protective film on the surface and stick it on the outer wall of the fish tank. Easy and convenient to operate.Specifications:Temperature reading range:Accuracy: 1COperation temperature :-20C ~+70CTemperature reading to within 0.1CPower Button Battery : Button Battery DC3VIncluded.The battery is under the red cover. After receiving the goods, remember to open the cover and remove the insulation layer inside the battery before use.Size:as pictureModelT-206 Touch screen model High and low temperatures can be set, and if the temperature exceeds the range, an alarm will be triggered screen temperature flashing indicates an alarmT-203 Key modelHigh and low temperatures cannot be set. It will automatically monitor high and low temperatures within 24 hours.CAUTION:Open the battery cover and insert battery with + positive side up. The LCD will now display the current room temperature.This thermometer cannot be used in water. Stick to the outside of the fish tank wall.NotePlease allow 1cm differs due to manual measurement.Due to the different display and different light, the picture maybe a little different with the actual color of the item. Thanks for your understanding.Package Included:1pcFish Tank Thermometer