SDT-1 waterproof Digital Aquarium Thermometer

This is a waterproof digital aquarium thermometer with a suction cup to submerge and work in water, suits the aquarium and marine fish tanks.
With a copula that could suck to the glass wall firmly and at a 30-degree elevation easy to read out the temperature value.
The temperature measuring range is -50 to +70℃ or -58/158°F;
Powered by 1 piece DC 1.5V button (LR44);
Default packed in blister card, offer a simple plastic bag package to save shipping cost if required.