Do you need a measuring instrument to monitor the fluctuation of thermometer and humidity in Fish Tank? This Submersible Digital Thermometer is the ideal gadget that you cannot miss. It can be mounted toglass . With a clear LCD display， it can simultaneously display temperature， humidity and time. Excellent value for money! It is time for action                                    Features             Fashionable and elwgant appearance .spacially water-proof design<br> Strong cupula can make it stick to the aquarium case firmly<br> Precise and convenient temperrature measurement<br> Digits on LCD display big and clear ，easy to read<br>                                                            Specifications             Temperature Measuring Tange     -50℃-70℃(3    <br> Accuracy     ±1.0℃(±2℉)    <br> Operation Environment     -10℃-50℃    <br> Power Supply     Button Battery (DC 1.5V) LR 44    <br> Weight     1.31oz / 37g    <br> Color     Black    <br> Dimensions    2.20 x 1.38 x 0.39" /5.6 x 3.5 x1cm(L x W x H)     <br>                                                             Package Includes            1 x Fish Tank Digital Thermoneter<br>