Digital Aquarium Thermometer with Probe Suction Cup Fish Tank Water Electronic Thermometer Measurement Degrees Celsius Product description Features: Functional features: stylish appearance, small and exquisite, suitable for aquariums; Celsius, Fahrenheit temperature conversion. Instructions for use: 1. Fix the display partly outside the aquarium (the display can not touch the water), and put the sensor probe into the water. 2. Press the power button to start displaying the temperature. 3. If you need to turn off the power, please press and hold the power button for 3 seconds. 3. The display shows "HC" which means the measured temperature is higher than 70C, and the display shows LCn which means the measured temperature is lower than -50C. Specification: Name: Fish tank electronic thermometer Color: Black/Yellow Size: 5.8x3.5cm Display mode: LCD display Measuring range: -50~70C Sensor Model: NCT/1CK Battery: Button cell 1.5V Packing: OPP bag Product Code: G1340 Measurement error about 1 Package includes: 1x electronic thermometer Notice: 1. Please allow the size of a little error, because it is manual is measured, but will not affect the use, wish you happy shopping 2. Due to the differences between different monitors, or the shooting light and angle pictures may not reflect the actual color of the item, but the difference will not be great, thank you for your understanding 3. If you are satisfied with our products and services, please leave a positive feedback, I wish you a happy day! _x000D_