Small Size Digital Fish Tank Aquarium Thermometer Temperature Measuring Meter Machine Yellow Features:  The shell is made of quality plastic, eco-friendly, anti-aging and durable. Built-in sensor accurately detects the temperature of fish tank. High brightness display screen is clear and easy to read. Easy to install to the wall of the fish tank. Small size and lightweight, easy to carry. The LCD Display Thermometer is moisture resistant and not affected by the environment, which will give accurate reading and display.  Specification: Item Type: Digital Thermometer Material: Plastic Shell, Electronic Components Battery Supply: 2 x AG13 Button Cell(included)  Measuring Range: -50°C-70°C Humidity display resolution: 1% Humidity sampling period: 10 seconds (1 minute) Humidity measurement accuracy: ±5% Temperature measurement accuracy: ±1 degree (at normal temperature) Dimensions: 5.8*3.5*1.6cm / 2.3*1.4*0.6inch LCD Size: 2.6*1.36cm / 1*0.5inch Weight: Approx. 34g Package List: 1 *  Digital Thermometer 1 * Sucker 2 * Button Cells Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.