10 Pack Mini Hygrometer Thermometer Digital LCD Monitor for Greenhouse, Baby Room, Reptile Incubator Mini round digital humidity thermometer allows you to easily monitor the temperature and humidity of your environment Features Fahrenheit (°F) or Celsius (°C) conversion; press the button to switch between units Measurable humidity range: 10%–99%; humidity accuracy: ±5%–10% at room temperature 25°C Reliable performance with updates every 10 seconds for accurate real-time readings Portable indoor hygrometer and thermometer for monitoring home air conditions; suitable for personal and professional use Battery: LR44 button cell (included) Color: Black Material: ABS Size: Approximately 45 x 45 x 14 mm Package Contents: 10 x Digital Thermometers Note: Light reflection and display differences may cause slight color variation between image and actual item Measurement error allowed: ±1–3 cm