Comes with 4 thermo-hygrometers to meet different needs Embedded installation design, powered by 2 x AG13/LR44 batteries (not included) Large LCD display (3.57 x 1.68 cm) with large digits for easy reading from a distance Temperature range: -50°C~70°C, humidity range: 10%~99%, temperature accuracy: ±1°C (under normal temperature), humidity accuracy: ±5%< br> With 1.5m long probe cable, ideal for office, bedroom, living room, aquarium, incubator, brooders, reptile tank, greenhouse, etc > Features: Large LCD screen to clearly show temperature and humidity at the same time Integrated design for easy installation, powered by 2 AG13 / LR44 batteries (not included) Professional thermo-hygrometer to accurately monitor the temperature and humidity of the environment Equipped with 1.5m long probe cable, it allows you to test the temperature and humidity of some special places, such as aquarium, poultry, reptile tank, incubator, greenhouse, office, bedroom, living room, brooders, etc