Taking the temperature in your turtle tank has never been easier with the Zoo Med Digital Aquarium Thermometer. Fully waterproof and submersible, this thermometer easily attaches to your turtle tank with suction cups. Get an accurate reading with a clear, digital readout to help keep your turtle healthy. A spare battery is included with this thermometer. If you have any questions about turtle or tortoise care, please contact the experts at MyTurtleStore.com!