Review on VIVOSUN 2-Pack LCD Digital Aquarium Thermometer Fish Tank Water Terrarium Temperature Gauge with Suction Cup for Turtles by Mikey Somerville

I have used other similar products to check water temperature in aquariums. This time I bought the product because it has a longer cord than other similar thermometers. However, I have confirmed that the temperature measurement accuracy of this product is very poor. It always read 4-6 degrees Fahrenheit below the actual temperature measured by some of the accurate thermometers I have. Based on my experience with this type of thermometers, I can agree that thermometers show temperatures 1-2 degrees higher/lower than the actual temperature, but 4-6 degrees like this product is too much for me to use. It is suitable for aquariums. I'm not sure if this product always shows a 4-6 degree difference from the actual temperature, but at least I bought 2 of these at this point and they both showed the same inaccuracy.