PAPADA Coffee Cup Discoloration Thermometer Indicates Milk Temperature Fish Tanks

Features: Suitable for testing temperature of milk bottles wine bottles beverages refrigerators kettles fish tanks water tanks indoors car etc. No-mercury harmless to human body and environment. No battery not easy to break reusable. Pocket size can be used at home or traveling. Simply pulled the backing off to reveal the adhesive back and applied to the front of your fish tank/aquarium/carboy/jar/fermentation bucket. Package Includes: 10x Thermometer Strips Specifications: Material: Paper Size: Approx.5cm/1.97in note: 1.Please allow 1-2cm errors due to manual measurement make sure that you do not mind before you order. 2.Due to the differences between different monitors the picture may not reflect the actual color of the item.