2 Pack Aquarium Thermometer, Fish Tank Thermometer, Digital

This excellent aquarium thermometer sits outside the fish tank whilst the remote waterproof probe is placed inside the tank, indicating temperature over the range of -50 to 70°C. It features a loud alarm to warn you if your aquarium drops below or rises above a specific temperature you set giving you peace of mind should the heater in your aquarium malfunction. It's powered by a single AAA battery (included) and can display in either Celcius or Fahrenheit at the touch of a button.

ETI Aquarium Thermometer With Max/Min And Temperature Alarm - Displays Tank

Lcd Digital Aquarium Thermometer Fish Tank Water Terrarium

Cheap Aquarium Thermometer Easy-to-read Measurement Suction Cup

Fahrenheit and Celsius scale. Attaches to the inside of your aquarium glass. Easy reference acceptable temperature band. Oval shape makes this unit easy to read.